broschure_flexiblemounts

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F L E X I B L EC

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See current price list for availability of items.We reserve the right to modify the design and manufacture of the products and materials described inthis catalogue.The pictures of the products are supplied for information only.

The order comprises :- the contract signed by both parties, or the purchase order and the acknowledgement of receipt,- eventually, special or specific additional conditions, finalizing of exceptions and or additions- general conditions of sale, available upon request are part of the order.

INTRODUCTION 3I -

DEFINITIONSII -II.1 Flexible Mounts 4II.2 Flexible Mounting Systems 5

III.1 Static function 9III.2 Dynamic function 9III.3 Various types of flexible mounting systems 17

NAVY SHOCK MOUNTING SYSTEMS 131VIB LD 03 - DECOUPLING WASHERS 132LOW DEFLECTION MOUNTS 133VIBMAR 134VIB HD50 138VIB HD45 139VIB HD56 143GB 530 MOUNTS 146“X” TYPE FLEXIBLE MOUNTS 147VIB VHD75- LOW LOADS 149- HIGH LOADS 152STRAFIX 153ACTIVE ISOLATION 155

FUNCTION OF A FLEXIBLEMOUNTS

III -

IV.1 Determining the centre of gravity 19IV.2 Determining the load per mount 21IV.3 Determining the deflection 23IV.4 Design examples 24

DESIGNING A FLEXIBLEMOUNTING SYSTEM

IV -

INDUSTRIAL RANGE OFELASTOMERIC MOUNTINGS SYSTEMS

V -

NAVY SHOCK MOUNTING SYSTEMS

INDEX 157/164

VI -

ELASTOMER PLATES 92DISK DRIVE SUSPENSIONS 93S.L.F MOUNTS 94E1E931S/E1E4045 95E1E11/E1E12/E1E13 97E1E21/E1E22/E1E23 99E1E31/E1E32 100E1E41/E1E42/E1E43 101 E1E941S 102ARDAMP 103E1C 2321/E1T 2105 106BECA 109POLYFLEX 112ISOFLEX 113ISODYNE 115SUSPENSION OF EQUIPMENT IN MOBILEAPPLICATIONS 117S.C.P MOUNTING 118BATRA RING 119OTHER MOUNTING SYSTEMS 121STRUCTURAL DAMPING SYSTEMS 125STRASONIC ACOUSTIC FOAM 126PAULSTRASIL 128

MOUNTINGS APPLICATION GUIDE 29RADIAFLEX 32PAULSTRADYN 36EVIDGOM 40PNEUMATIC MOUNTS SLM 43SANDWICH MOUNTS 46STABIFLEX 49STABIFIX 52CUPMOUNT 54S.C. MOUNTS 57S.T.C. 61MOUNT 22000 63TRIAXDYN 67ENGINE MOUNTING SYSTEMS 69STOPS 71SUPPORTS AND BUMP STOPS 76NIVOFIX 79MINIFIX 81TRAXIFLEX 82FLEX-LOC 84RINGS AND BUSHINGS 86ELASTOMER MOULDED PARTS 89

Page Page

3

- INTRODUCTION

The reduction of noise and vibration has become very important:

• The need to improve operating conditions makes it essential.

• The increasing mechanisation of industrial and domestic equipment and appliances make itnecessary.

• The lightness and increasing complexity of equipment demand it.

The following pages are dedicated to protection against vibration and shock. They offer designengineers the means to resolve isolation problems using elastomer alone or elastomer bondedto metal supports.The first few pages start, therefore, with a summary of definitions and an explanation of theterminology used as well as the principal formula on which suspension calculations are based.The design of a flexible mounting system is a major undertaking and is the subject of a specialsection which gives the principles used to select a mounting system according to its size,characteristics, type and applications.

Warning: solving flexible mounting system problems very often requires the services of aspecialist and we advise, very strongly, that if a simple solution cannot be found, then ourTechnical Services should be consulted.

I

M O U N T S

4

- DEFINITIONS

II.1.1 - Properties

- Flexible mounts are components which exhibit both flexibility and damping, at the same timeand to varying degrees.

• Flexibility- Flexibility is the ability of the mount to deform and recover, with an amplitude approximatelyproportional to the load.

• DampingDamping is a braking force the most important effect of which is the reduction of oscillations.There are essentially two types of damping:- Constant friction (dry friction) which, for a given setting, provides a constant braking forceindependent of the movement. For there to be movement, it is, therefore, necessary to apply aforce at least as great as the frictional force.- Viscous damping (such as that provided by hydraulic dampers) which provides a brakingforce proportional to the instantaneous velocity of the suspended part relative to the fixed part.Viscous damping is, therefore, essentially dynamic: it does not affect the position of staticequilibrium.

II.1.2 - Environmental conditions

Most of the standard mounts are made of natural rubber which has been chosen because of itsgood dynamic properties.Under normal operating conditions, these rubber compounds guarantee stability over longperiods and, in particular, limited creep.The following operating conditions are considered abnormal:

• temperatures greater than 70°C,• prolonged contact with corrosive liquids,• prolonged contact with acids or alkalis,• aggresive environment (oils, fuels),• corrosive gases (ozone, chlorine...).

Using a mount unintentionally under such conditions can lead to premature ageing, degradationor even destruction of the rubber.An abnormally agressive environment can, in particular, increase the deformation of themounting (creep).

PAULSTRA flexible mounts may be made using various special compounds that are highlyresistant and able to withstand the abnormal conditions described above.Our Technical Services are at your disposal to reply to any queries about the properties ofparticular compounds.

II.1.3 - Elastomeric flexible mounts

Mounts using natural or synthetic elastomers always provide a combination of pure elasticityand viscous damping. Although commonly used, the term “shock absorbers” is completelyincorrect. The two characteristics, flexibility and damping, are, in fact, essentially different: arubber mounting may be compared to a car suspension where the two functions are providedby different components working in parallel:

• true elastic suspension provided by springs,• damping provided by hydraulic damping (shock absorbers).

A flexible mounting using rubber = a spring + a damper.

II

II.1 - FLEXIBLE MOUNTS

5

A machine is suspended elastically by placing flexible mounts between the machine and itsseatings (floor, slab, chassis, etc.). The type of mounts, its number, distribution, positioning andindividual characteristics, depend on the overall characteristics required by the suspension togive the desired result.The most common problems are those where vibration determines the essential characteristicsof the suspension. It is necessary, therefore, to start with a presentation of the terminology anda review of the most important definitions and principles.

II.2.1 - Vibration theory conceptsA machine, suspended elastically, vibrates when it is subject to periodic alternate influenceswhich produce oscillations of greater or lesser amplitude.There are two main modes of vibration:• Natural or free vibration, which is the vibration of the machine that occurs when it is released

after having been displaced from its position of equilibrium,• Forced vibration, which is imposed on the machine, either by its own operation, or by

influences from its surrounding.

• Degrees of freedomThe number of degrees of freedom is the number of independent parameters which determinethe position of the machine at any given time.Degrees of freedom of movement:• Linear movement parallel to a given axis (the independent parameter is the displacement

along the axis),• Rotation about a given axis (the independent parameter is the angle of rotation about the

axis).

• Vibrations with only one degree of freedomThe following discussion applies to vibrations with only one degree of freedom: a linearvibration parallel to a fixed axis.• Periodic vibration:- Frequency: Number of complete cycles in a unit of time.

N = Number of cycles per minute.n = Number of cycles per second (Hertz).

- Period: Duration of one cycle.1

T = ___ (seconds)n

2π- Angular frequency: ω = 2π n = ____ (radians per second).

T

II.2 - FLEXIBLE MOUNTING SYSTEMS

II.1.4 - Characteristics of elastomeric flexible mounts• Elastic propertiesThese are the parameters which define the ability of the mounting to be deformed in variousdirections.- The linear stiffness Kx, along the axis Gx is the ratio of the force to the correspondingdisplacement along this axis. The linear stiffness is expressed by daN/mm.The linear stiffness (Ky, Kz) for the other axes (Gy, Gz)are defined in the same way.- The torsional stiffness (Cx, Cy, Cz) about the three axes (Gx, Gy, Gz) is the ratio of the torqueto the angular displacement about the axis.The tortional stiffness is expressed in m.daN/rad.These six parameters, which are not independent of each other for a given mount (theinterdependence changes with the shape and structure of the mounting) are proportional to theYoung’s modulus of the elastomer used in the mounting.Using these six values, it is possible to calculate the stiffness along or about any arbitrary axis.

• Damping propertiesThe most useful parameter is the “intrinsic damping factor” of the elastomer used. This will bedefined for a suspension (§ II.2.2). The intrinsic damping factor of a mount is the same as thatof the suspension.

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- Maximum amplitude: The maximum offset from the equilibrium position for each cycle. For aforced vibration under constant conditions, the amplitude remains constant.

• Sinusoidal vibration x = A sin ωt (fig.1)

1 ω- Frequency n = __ = __

T 2π- Amplitude A - Instantaneous amplitude x = A Sinωt- Maximum velocity V = Aω - Instantaneous velocity v = Aω cosωt- Maximum acceleration Γ = - Aω2 - Instantaneous acceleration γ = - Aω2 Sinωt

High frequency vibrations (high ω) may, therefore, produce very high accelerations even at lowamplitudes.

II.2.2 - Characteristics of flexible mounting systems

• Elastic propertiesThese are the parameters which define the freedom of a machine to move with respect to itsseating. The movements are, usually, referred to an axis system (Gx, Gy, Gz).

In the example in figure 2:

• The origin of the axis system is at the equilibrium position of the machine’s centre of gravity.• The axes are parallel to the axes of symetry of the machine.

As for mounts, the stiffness of a suspension is defined for displacements with only one degreeof freedom relative to a fixed set of axes.

Fig. 1

Am

plitu

de

Timet

1 2 πΤ = __ = ___n ω

π__ω

A

-A

0

x

π___2ω

3π___2ω

2π___ω

2π___ω

Fig. 2

Yaw

Verticalmovement

Transverse

movement

Pitch

Longitudinalmovement

Roll

G

7

- Linear stiffness:

Kx along Gx = longitudinal movementKy along Gy = transverse movementKz along Gz = vertical movementFor each axis, the linear stiffness is the sum of the linear stiffness of all the mounts.

Kx = Σ kx Ky = Σ ky Kz = Σ kz

- Torsional stiffness:

Cx about Gx = rollCy about Gy = pitchCz about Gz = yaw

The torsional stiffness of the suspension depends on:• The individual stiffness of the mounts,• The position and orientation of the mounts with respect to the centre of gravity G of the

machine.

• Damping properties

Elastomers exhibit viscous damping, the braking force applied to an elastic suspension is R x V,where:R is the resistance,V is the relative velocity of the suspended machine at time t.

If, starting with an undamped suspension, the damping is progressively increased (with allother factors remaining constant) the amplitude of the free oscillations, starting from a giveninitial offset, die away more and more quickly.The value of damping for which the return to the equilibrium position is asymptotic(without oscillation) is called the “critical damping” and is denoted by a resistance Rc.The damping factor ε is defined for a resistance R:

Rε = ___ (ε = 1 for critical damping)Rc

When suspension is subjected to forced vibrations at a frequency ω, it has been shown that, fornatural elastomers, the product ε ω remains reasonably constant. This is equally true at theresonant frequency (see below).

ε ω = εo ωo constant (ωo: is the resonant frequency).εo being the damping factor at the resonance frequency.

It can be shown that εo is an intrinsic property of the elastomer used.

εo = intrinsic damping factor.εo of a suspension = εo of each mounting (if all mountings use the same elastomer).

• Electrical characteristics

Elastomers have an electrical resistance which varies according to their composition, hardness.As a guide, the following values have been measured for our standard elastomers.

Natural Rubber hardness 45 1013 Ohm x cm² /cmhardness 60 106 Ohm x cm²/cmhardness 75 104 Ohm x cm²/cm

We have also developed special elastomers which can have a dielectric strength greater than2,000 Volts for 1 minute.

8

• Creep characteristics

The following formula, which is derived from measurements on samples, gives an estimate ofthe creep for a load which compresses a Radiaflex mount by 10% of its height at a temperatureof 30°C.The creep for an actual mounting also depends equally on its shape.

Static deflection at time t = initial static deflection x (1 + Cm x f(t))where f(t) is the value of the creep from the graph below:

Creep f(t) in compression relative to the initial static deflection.

and Cm is a correction coefficient taken from the table below according to the sample material:

Note:These values are given as a guide only. Consult us for use under other conditions (temperature,complex profiles or other elastomers).

Mounting:For applications where alignment is important, to overcome the problems of initial creep of theelastomer mounts, adjustment to align the axes of shafts should be made at least two days afterthe machine has been mounted.

Material

Standard naturalrubber

Polychloroprene 1.1 1.6 1.6

1.0 1.6 1.7

Hardness 45 Hardness 60 Hardness 75

t (time in days)

0.2

0.15

f(t) 0.1

0.05

050 100 150 200 250 300 350 400

9

- FUNCTION OF A FLEXIBLEMOUNTING SYSTEM

This is the primary function of elastic suspensions where there is vibration or shock. Thecalculations presented here assume that the linear stiffness of the mounts remainsconstant. This is true for elastomeric mountings in normal conditions of use (mechanicalvibration, normal temperature).

III.2.1 - Vibrations with only one degree of freedom

The action of a flexible mounting system is very complex. To present the principles, we willstudy a simple idealised case (fig. 3).

Taking the case of a machine of mass M constrained so that it can only move in a directionparallel to the vertical axis Gz.

It is attached to its seatings by a flexible mount S with a stiffness K along the axis Gz.

An elastic suspension allows the static load to be more evenly distributed.If a machine rests on more than three points using “rigid” mountings, it is impossible to predictthe load on each mounting point and the machine could be unevenly stressed.

With elastic mounts having a known stiffness, it is possible to determine (by calculation, ordirect measurement) the deflection in each mounting and thus deduce the loading and correctany imbalance.

An elastic suspension accomodates minor differences in the distance between mounts.However many mountings there are, in order to avoid excessive local stresses, a rigid assemblyrequires very close tolerances on the distance between mountings and of the mating surfacesof the machine and its seatings.

To avoid prohibitively close manufacturing tolerances, “play” is allowed in the mount whichgives rise to the well known problems of wear and noise due to loose fixings.

Flexible mounts allow larger manufacturing tolerances without large variation in forces.

An elastic suspension can also absorb small movements due to, for example, the expansion orthe deformation of chassis, bodyshells, girders, etc.

III

III.1 - STATIC FUNCTION

III.2 - DYNAMIC FUNCTION

Fig. 3F l e x i b l emounting S

Machine

G

M

Z

10

• Free oscillation (natural frequency)a) Undamped (entirely theorical)The machine, having been displaced from its position of equilibrium by a distance A, oscillatessinusoidally.The equation of motion is: z = A sin ωo t

K ωoThe natural pulsation is ωo = √ ___ Proper frequency Fp = ____

M 2π

The oscillation continues indefinitely with an amplitude A (as shown in Fig. 1 with ω replaced byωo).

b) Damped In this case, the machine oscillates about its position of equilibrium with a damped sinusoidalmotion (see Fig. 4).The equation of motion is:

-ε’oω’otz = A.e .sin ω’ot

The natural pulsation is:

Kω’o = √___ (1 - ε’2 ) = ωo √1 - ε’2

M o o

ε’o is the damping factor at the frequency ω’o.

As ε’o is very close to εo, the natural frequency may, therefore, be written as:

ω’o � ωo √1 - ε 2o

For natural rubber, εo is small by comparison with 1 (from 0.02 to 0.1). ω’ο is, therefore, very close to ωo.

2π___ωo

2π___ωo

5π___2ωo

π___2ωo

3π___2ωo

7π___2ωo

z

A

0 t

Fig. 4

11

The variations of the transmission, coefficient λ, as a function of ω for various values of ε0 areshown in fig. 5 (page 12). ω0

Attenuation 2For rubber mountings, the term 4 ε0 is much smaller than 1. The attenuation in % is 1 - λ:

ω 2(ω0 )- 2 1E% = 100 _______ or 100(1- _______ )

ω 2 2(ω0 ) - 1 ω(ω0 ) - 1

For a given induced frequency ω the attenuation depends on the natural frequency of thesuspension.For a particular direction, the relationship between the natural frequency, the suspension’s sub-tangent and the induced frequency are plotted on the chart fig. 6.For a particular induced frequency (for example 1500 rpm) it is possible to find the sub-tangentwhich will provide an acceptable attenuation. In general, an attenuation greater than 50% isrequired. For this example, the chart indicates that an attenuation of 80% will be achieved for anatural frequency of 10 Hz (see section IV.3.1).

2F'M 1 + 4 ε0λ = ____ = √_____________ FM (1 - ω

2 )2 + 4 ε

2

0ω02

• Forced VibrationIf the machine is now subject to forced vertical vibration induced by a sinusoidal force offrequency ω.The inducing force is F = FM sin ωt.

- For a rigid suspension: the inducing force is transmitted directly to the structure the machineis mounted on.

ωο- For an elastic suspension with a natural frequency ωο or proper frequency Fp = ____ anddamping factor εo: 2π

When the inducing force is applied, an oscillation is induced at the natural frequency ωο whichdies away rapidly so that, after a short period, only the steady state forced vibration at frequencyω remains which transmits a sinusoidal force to the surrounding structure.The force transmitted is: F’ = F’M sin ωt. A transmission coefficient λ is defined as the ratio between the amplitude of the forcetransmitted F’M to the amplitude of the inducing force FM (or, if preferred, the force that wouldbe transmitted if the suspension was not elastic).For a mounting system using elastomeric mounts, this coefficient is:

To summarise:

Rigid system

Flexible system(ω0, ε0)

Inducing force Transmitted force Transmission coefficient

F = FM sin ωt F = FM sin ωt λ = 1

F = FM sin ωt F’ = F’M sin ωt

2F'M 1 + 4 ε0λ = ____ = √_____________ FM (1 - ω

2 )2 + 4 ε

2

0ω02

12

Fig. 5

An efficient mounting system use:

ωa high value of ___ low value of ω0 low value of λω0

a moderate ε0 - limited amplification in the resonant region.- minor effect in the attenuation region.

Transmissioncoefficient

Amplification Attenuation

ω___ = 1 λ > Resonance ωoamplitude at resonance which increases as

εο decreases. ω___ = √2 λ < 1ωo

Attenuation (or vibration isolation) region.ωAs ___ = increases, λ decreases.ωo

εo has very little effect.

ω___ < √2, λ > 1ωo

Amplification region for any εo.

εο = 0

4

3

2

1

1

√2

5

7

6

εο = 0,1

εο = 0,2

ω___ωο

13

Attenuation as a function of natural frequency and frequency of excitation.(A theorical graph for a mounting system without damping)

Fig. 6

Frequency of excitation (rpm)

Susp

en

sio

n n

atur

al fr

eq

uen

cy (

Hz)

Sub

-tan

ge

nt

(mm

)

Frequency of excitation (Hz)

Atténuation %

Gain (dB)

REGION TO BE AVOIDED

VIBRATION ISOLATION

SEMI-RIGID SUSPENSIONS

14

• Practical considerationsa - Variable speed machinesIn practice, there may not be a single, well defined value for ω, as machines may have a variablespeed (variable ω).In these cases, the vibration isolation should be determined for the lowest speed.

b - Passing through resonanceAll machines must start and stop.Starting from rest to reach the speed ω (in the vibration isolation region), it is necessary to passthrough the resonant region.It is neccesary to ensure:- that the passage through resonance is as quick as possible; - that the suspension is sufficiently well damped so that the maximum force transmittedpresents no risk for the machine, the suspension or the seating.

c - Elastomeric suspensionsFor the elastomers currently used in flexible mounting systems, the intrinsic damping factor ε0lies between 0.02 and 0.1 (it can be as high as 0.2 with synthetics such as butyl rubber).- In the vibration isolation region, the formula for the transmission coefficient is simplified as, forthe values of ε0 for natural rubber, the term 4εο

2 is negligible by comparison with 1.

1λ = _____ for ε0 between 0.02 and 0.1

ω2-1

ω²0

1- At resonance λr = _____

12 ε0

λ = ___2 ε

For natural rubber, therefore, the amplification at resonance is between:

1 1______ = 5 and _______ = 25 2 x 0.1 2 x 0.02

a) Noise and vibrationNoise is a random vibration. It is formed by the combination of a number of uncorrelatedfundamental frequencies. Noise gives rise to sound.Airbone noise is usually treated separately from structure borne noise.Sound is associated with the disturbance of a medium (solid, liquid or gaseous). Thisdisturbance is in the form of a vibration of the molecules of the medium about their position ofequilibrium.

b) Improving acousticsAn elastic suspension affects only structure borne noise.This is a vibration of the building structure and a flexible mounting system breaks thetransmission close to the source. The resilience of the attachment reduces the forcestransmitted to the base and its vibrational energy.

structure borne noiseairborne noise

elastic suspension

false ceiling

Soundproofed control room

airborne noise

(using Traxiflex mountings)

Source of noise Adjacent room

structure bornenoise

Transmission from one roomto another

Example: Workshop with guillotine(shock and noise)

structureborne noise

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As the radiation efficiency is unchanged, the improvement in terms of radiated power (acoustic)is the same as the improvement in terms of the force transmitted. The curve giving thevibrational attenuation in % may be translated into decibels.

100Attenuation in dB is 20 log _______ where E is the attenuation in % 100 - E (structure borne, not airborne noise).

The suspension of the machinery allows the adjacent room to be sound insulated and to bemade more quiet.The rigidity of the base supporting the suspended mass must always be taken into account. Asa rule, it is considered that unless the mountings are ten times more flexible than the base thechoice of suspension must be re-considered.PAULSTRA mountings may be caracterised at high frequencies.

III.2.3 - Shock

• The nature of shockFor a given period, the equipment is subjected to a brief, impulsory excitation. It is the mostsevere type of excitation that it may encounter during its lifetime.During the period that the excitation is applied, the speed of the equipment will vary: it issubject to acceleration and, therefore, to a force.A system that reacts slowly will not be subject to the same shock as a system that reacts quickly.It is necessary to compare the length of period that the stimulus is applied, against the naturalfrequency of the equipment.

• Types of shockIn practice, there are two types of problems.• The equipment is subjected to shocks which are well defined by experiments, but are very

complex and not reproducible under laboratory conditions. It is, therefore, necessary todefine an equivalent shock.

• The equipment must resist shocks which are arbitrarily defined (e.g. meeting standards).A shock is defined by an excitation which varies with time: the acceleration, the speed or thedisplacement of the point where the excitation is applied. In some cases, it is better to definethe shock as the energy transferred to the equipment (e.g. vehicle impact).

• Protection against shockThere are two principal cases to be considered:a) Limitation of the force transmitted to the equipment:This case often appears in the following form:The equipment, moving at a known speed, meets an obstacle. The force that it can withstandwithout damage is limited to a known value.A system of rubber parts, which could be the flexible mounting system of the equipment, isplaced between the equipment and the obstacle.These parts provide a constant stiffness Kz in the direction of the shock. If there is energy W tobe absorbed in the absence of damping:

1 2 WW = __ Kz Z2 The maximum force FM = Kz Z = ___ The maximum force is inversely

2 Z proportional to the travel.

2WThe travel Z = √___ The travel is inversely proportional to the square root of the stiffness.

Kz

Note: Some systems do not have a constant stiffness, but a stiffness which increases rapidly (e.g.compression systems). It is clear that if the energy W is not absorbed before the stiffnessincreases, the maximum force will be much higher than predicted by this formula.

Example of measurements made on a special Radiaflexmounting.Elastomer: polychloroprene hardness 47Amplitude ± 0.01 mm about the position under static load

DY

NA

MIC

ST

IFFN

ESS

EXCITATION FREQUENCY

N/mm4,000

3,500

3,000

2,500

2,000

1,500

1,000

500

0 50 100 150 200 250 300 350 400 450 500

Hz

16

b) Limiting the acceleration of particular parts of the equipmentIn this case the shock must be described in terms of its potential to destroy. The efficiency ofthe protection system is measured by its ability to reduce this potential.A shock to the equipment can damage a component part if this part is induced to vibrate at anamplitude which is incompatible with its mechanical characteristics thus causing it to break.

A shock can be characterised by its action on a whole series of components.For the same shock, each component has its own specific response, which differs from onecomponent to the next.The shock spectrum is the graphical representation of the ratio of amplitude of vibration (Γ) ofthe components to the amplitude of the shock (Γ0 ) as function of the ratio of the duration of theshock τ to the natural frequency T of the elements.This is not a representation of the amplitude as a function of time, neither of the excitation norof the effect, but a convenient representation of the destructive power of a shock.The representation is not reversible.• It is not possible to recover the form of the shock from the spectrum.• Two different shocks may well produce the same spectrum.Take, for example, the case of shock with a semi sinusoidal acceleration.

Study of the spectrum shows that the performance of a mounting system is acceptable when itis possible to obtain a natural frequency T such as:

τ Γ__ < in which case the ratio __ is less than 1 and the component is protected.T Γο

If it is not possible, it is better to set up the flexible mounting system to avoid the region ofsignificant amplification for:

τ__ between 0.25 and 2.5T

This simple case shows the role of a flexible mounting system and the importance of knowingthe details (shock spectrum, amplitude as a function of time) and, above all, the duration of theshock.

• The role of dampingDamping can be useful in reducing rebounds and the amplitude of successive cycles ofoscillation. It is, however, important not to use just any type of damping as some can give riseto unfortunate reactions. Elastomers provide a compromise which allow the provision a highlevel of protection.

A piece of equipment must withstand a shock of Γ0 = 400 m/s² for a period t = 8.75 x 10-3 s.

Natural frequencymass

τ__T

Γ__Γ0

Load on mounting points

Component A of the equipment40 Hz10 kg

8.75 - 10-3 x 40 = 0.35

1.25

400 x 1.25 x 10 = 5000 N

8.75 - 10-3 x 286 = 2.5

1.1

400 x 1.1 x 1 = 440 N

Component B of the equipment286 Hz

1 kg

Shock spectrum

1 2 3 4 5

A B

Γ__Τ

Γ__Γο

1.5

1

0.5

17

III.3.1 - Active isolation systemThis is a flexible mounting system designed to prevent a machine from transmitting itsvibrations to its seating or foundation.This is the theorical problem (with one degree of freedom which was treated, by attenuating thevibration, in the preceding pages.The vibration isolation does not stop the machine from vibrating, but it reduces the transmissionof these vibrations.By comparison with a rigid suspension (which transmits the vibrations) the amplitude of themachine’s vibrations may be greater. The machine is, to an extent, freed from its fixed seating. This is the case for the automobile “floating engine” which, mounted on a flexible mountingsystem, no longer transmits its vibrations to the bodywork and the passengers due to increasedmobility under the bonnet (hood).If excessive movement cannot be tolerated, the only way to reduce it, without reducing theefficiency of the flexible mounting system, is to increase the suspended mass (ballasting).For a given excitation, the amplitude is inversely proportional to the mass.This is necessary for certain machines which produce particulary severe vibration: slow singlecylinder compressors, centrifuges, power hammers etc.These machines, are therefore, rigidly fixed to a chassis or heavy slabs and the whole assemblyis suspended.Increasing the suspended mass allows good vibration isolation with limited vibration of thesuspended assembly.It is worthwhile suspending complete assemblies rather than individual machines: generatingsets, motor/compressor units, motor/pump units.

• Important noteTwo points must always be borne in mind when designing equipment:• Firstly, that a high level of protection requires great flexibility which requires considerable

clearance between the equipment and its surrounding.• Secondly, that the equipment will oscillate and room must be allowed for the rebound in case

of shock. Travel limiters must be positioned so that they do not impede the operation of theflexible mounting system during the shocks allowed for in the design.

A flexible mounting system using rubber protects against shock by reducing the travel andmaximum force. It is necessary to allow enough clearance for the rebound.

III.2.4 - General caseTheoretical study above is based on a very simple case:movement with only one degree of freedom (vertical) with only one excitation (also vertical)aligned with both the centre of gravity of the suspended machine and the centre of elasticity ofthe mounting system.In general, things are not so simple. The machine can move in any of the degrees of freedom(rotation or linear movement). In theory, there are as many natural frequencies as there aredegrees of freedom.These natural frequencies are not independent but are “coupled”. If one of these is excited inone degree of freedom, it can, as a result of the coupling, give rise to vibrations at the samefrequency in other degrees of freedom.To analyse the whole behaviour, the stiffness in all directions needs to be taken into accountand not just the mass of the suspended body but also the moments of inertia so that rotationalbehaviour can be evaluated.In addition there may be not one but several forced vibrations, with variable frequenciesapplied to several different points, in various directions or about various axes.Even general cases can be very complex however symmetrical structures and mountingarrangements allow the use of the single degree of freedom analysis shown above. In othercases only an in-depth study allows an effective solution to be found. Our Technical Services arethere to help you to define it.

III.3 - VARIOUS TYPES OF FLEXIBLE MOUNTINGSYSTEMS

18

III.3.2 - Passive isolation systemThis is a flexible mounting system designed to protect a non-vibrating machine from thevibrations of its surroundings.The design of a flexible mounting system for attenuating vibration, as defined above, is stillvalid. With the correct flexible mounting system, the acceleration transmitted to the machine isvery small and as it is not subject to any other excitation it remains almost stationary.The vibration of the supporting structure is almost entirely absorbed by the flexible mounts.

III.3.3 - Semi-rigid mounting systemThis is a suspension where there is no vibration isolation for a given frequency ω

ω( __ < √2 )ω0

As shown above, such a mounting system should be of no interest as it leads to an amplificationof the vibration, not an attenuation. In practice, it can, however, give reasonable performance inthe following two cases.

• CouplingIn practice, there is not just one movement. For a mounting system, several movements arepossible. In fact, as we have seen (fig. 2), a machine may have six degrees of freedom. A properstudy of a mounts system will take into account the type of excitation acting on the machine andtry to arrange that it does not vibrate in all directions. However, because of constraints onmounting points, the mounts may not always be put in ideal positions: if the machine is subjectto an excitation in one direction, it may, therefore, move in several directions, e.g. two. These twomovements are said to be “coupled”.The natural frequencies in each direction are not identical. The coupling between the twomovements has the effect of lowering the lower natural frequency and raising the higher. Insteadof having one maximum (fig. 5), the response curve has two. It is essential the excitation doesnot fall on one or the other. As it may demand an impossibly high flexibility, it is not alwayspossible to make the coupled natural frequencies sufficiently low to put the frequency of theexcitation in the vibration isolation region. On the other hand, if the two natural frequencies areplaced on either side of the frequency of the excitation, a modest attenuation may be obtained.

• HarmonicsA vibration of frequency ω is rarely “pure”. Frequently it also includes “harmonics”; i.e.vibrations at related frequencies 2 ω, 3 ω ... Even if it is not possible to provide vibrationalisolation of the fundamental ω, it may be possible to attenuate the harmonics. This may be moreimportant as the low frequencies are often inaudible and, in addition, correspond to very smallmechanical accelerations whereas the higher frequencies are a source of noise which can beeliminated by an appropriate vibration isolator.

III. 3.4 - External connections

So far, it has been assumed that the machine is only connected to its surrounding by its flexiblemounting system.In pratice, there will be other connections, such as:• Pipework (inlet, exhaust, cooling).• Electric cables, remote controls...It is necessary to ensure, or arrange, that these external connections are sufficiently flexiblewith respect to the relative movements.This precaution will avoid:• Damage to pipework.• Reduced vibration isolation by introducing additional rigidity.• Direct transmission, via these connections, of the vibrations which have been suppressed

elsewhere.As the flexible mounts attenuate the transmission of the vibrations the machine is free to move,be sure to leave enough clearance in all directions to allow freedom of movement.

19

Information about... ...to determine the fundamental parametersof the flexible mounting system

...the MACHINE and... Centre of gravity Weight Load on each mountingNumber and position of mountingpoints (supplied or possible)

the DISTURBANCE...Frequency of disturbance Deflection of the mount for the(or speed of rotation) required attenuation

Principle direction of Stiffness characteristics of thethe disturbing force mount

When designing a flexible mounting system, it is essential to know, precisely the basiccharacteristics of the machine to be suspended.

It is extremely useful to have a drawing (even if it is schematic) which shows the position of thecentre of gravity and the mounting points provided.The drawing may also allow the evaluation of certain parameters which may be necessary andwhich are often unknown to either the manufacturers or the users (e.g. moments of inertia).

For passive isolation, it is necessary to obtain the maximum of information about the externalvibrations which may disturb the machine.In any case, for complex problems (oscillations in many degrees of freedom, multipleexcitation), it is advisable to consult our Technical Services.

For simple problems (one degree of freedom, or two degrees of freedom with the centre ofgravity close to the mounting plane) it is possible to design the suspension, as shown below,with a minimum of information about the machine and the disturbance.

- DESIGNING A FLEXIBLEMOUNTING SYSTEM

IV.1.1 - Ask the manufacturerIn most cases, the manufacturer of the machine should be able to supply the exact position ofthe centre of gravity as well as the weight.Consult the manufacturer.

IV.1.2 - Graphical method for finding the centre of gravity of an assemblyThis is suitable for assemblies of units for which the individual weights and centres of gravityare known.

Important notes:• Using a graphical method, it is important to represent dimensions using a well determined scale

and the weights by vertical lines whose lengths are proportional to their size (e.g. 1 cm for10 daN).

• If the centres of gravity considered in this section are not in the same vertical plane, theprocedures proposed here should be applied twice: for the front and for the side view withthe outlines corresponding to each view.

IV

IV.1 - DETERMINING THE CENTRE OF GRAVITY

20

Fig. 8Draw: AP’B = BPB Join P’A and P’B

BP’A = APAThe centre of gravity G lies at the intersec-tion of the lines P’A P’B and AB.Measure a and b.

• An assembly of two units

• An assembly of three or more units

Proceed, stage by stage, as described above using groups of two units or sub-assemblies withcentres of gravity and weight known or calculated.

IV.1.3 - Experimental determination of the centre of gravity of a unit

This method is used where the above two methods prove to be impossible or difficult (complexgeometry).

• Using a roller

For a given orientation (length, width and height) the centre of gravity is in the vertical planepassing through the axis of the roller when the machine is balanced. The centre of gravity is atthe intersection of the three planes thus determined.

• By “hanging”

Suspended from a cable, the centre of gravity is on the vertical dropped from the suspen-sionpoint. To find the exact centre of gravity, repeat the operation twice, using a different suspensionpoint each time.

Fig. 7

Two units of weights PA and PB respectivelywith centres of gravity A and B separated by L.

a b

L

PA

P’B

P’A

PB

A •A •• B• B

G

•

L L’

PB

PA

PC

P’A

PC

P’C

P’B

C•

A • A •• B

B• B

•

A• C

•C•

G

••G’

•G’

Fig. 9

21

IV.1.4 - Analytical determination of the centre of gravity ofan assembly of several masses

An assembly of several masses m1, m2, ... mn is fixed in space.It is assumed that the coordinates, within an arbitrary Cartesian set, of each mass are known.

X1 X2 Xnm1 { Y1 m2 { Y2 mn{ Yn

Z1 Z2 Zn

The mass of the assembly M = m1 + m2 + ... + mn acts at the coordinates of the centre of gravityof the whole: x, y, z

m1 x1 + m2 x2 +...+ mn xnx = _________________________M

m1 y1 + m2 y2 +...+ mn yny = _________________________M

m1 z1 + m2 z2 +...+ mn znz = _________________________M

Important note: The coordinates of the centres of gravity may be negative and must be usedwith their sign.

IV.2.2 - Number and position of the mounting points are predeterminedIn this case, it may not be possible to have the same load on each mount.

• Four mounting pointsA, B, C and D are the mounting points,G the centre of gravityP the total weight suspendedPA, PB, PC and PD are the loads on the mounting points A, B, C and D.

m2 l2 m1 l2PA = ___ . ___ . P PB = ___ . ___ . Pb a b a

m1 l1 m2 l1PC = ___ . ___ . P PD = ___ . ___ . Pb a b a

If PA, PB, PC and PD are significantly different, it is, theoretically, necessary to choose fourdifferent mounts which will give the same deflection under the various loads.

IV.2.1 - Number and position of the mounting points are not predeterminedIn this case, the number and position of the mountings are determined in such a way that theload on each mounting is the same for all mounting points.Taking, for example, a symmetrical machine with:

G: the centre of gravityP: the weight of the machineCalculate the position of 6 mounting points such that the loadon all the mounting points is P1

P1 l’1 + P1 l’2 = P1 l1Weight

from which l1 = l’1 + l’2 and the load per point = ______6

IV.2 - DETERMINING THE LOAD PER MOUNT

Fig. 14

Fig. 13

+ A D +

+ B C +

G

I1 I2

m2

m1b

a

m1

y1

x1

z1

y

x

z

o

•

•

•

•

o o o

o o oG

l1 l’1

l’2

22

• More than four mounting points (fig. 15)In this case it is best if the assembly is symmetrical about avertical plane. This is assumed to be true in the following.To the left of G, there are 2n identical mounts.To the right of G, there are 2p identical mounts which are,possibly, different from the 2n mounts to the left.The problem is to set the difference between the left handand right hand mounts so that the deflection under load of the2n + 2p mounts are all the same.Under these conditions, all the mounts to the left of G will besupporting the same load Q and all those to the right will besupporting the same load R.This will give:

Q (l1 + l2 + ... + ln) = (λ1 + λ2 + ... + λp)2 nQ + 2 pR = P

From which the mounts load is:

λ1 + λ2 + λpQ = ________________________________________ . P

2 n (λ1 + λ2 + ... + λp) + 2 p (l1 + l2 + ... + ln)

l1 + l2 + lnR = ________________________________________ . P2 n (λ1 + λ2 + ... + λp) + 2 p (l1 + l2 + ... + ln)

If Q and R are not too different, the same size mounts may beused but with different hardness elastomers.

Example (fig.16)Taking a symmetrical machine with an offset centre of gravityG and 6 mounting pointsn = 2 et p =1.which gives:

λQ = ______________ . P

4 λ + 2 (l1 + l2)

l1 + l2R = ______________ . P4 λ + 2 (l1 + l2)

IV.2.3 - Important notes

If a single size of mount is used, but different hardness elastomers are choosen, there is a highrisk that the mount may be interchanged which may degrade the attenuation of the suspension.The machine must be mounted with great care.There are, however, benefits from using identical mounts to build a suspension. If thepredetermined mounting points of the chassis do not allow a centered suspension, the solutionis to attach these to a false chassis, as rigid as possible, to which the desired number of identicalflexible mounts are attached in the positions required. If this false chassis is a slab of concrete(or inertia block) the suspended mass is increased which improves the quality of thesuspension.

If the machine weighs 500 daN and λ = 0.4 m; l1 = 0.3 m; l2 = 0.9 m, then Q = 50 daN and R = 150 daN.

Fig. 16

Fig. 15

+

+

+ +

+ +

+

+ + +

+++

Q Q Q

G

G

R R

+ + + +

l1

l2

ln

λ1

λP

==

+Q +Q R+

+Q +Q R+G

l2

l1λ

= =

23

IV.3.1 - Deflection and sub-tangentFig. 17 is a graphical representation of the derivation of the deflection and sub-tangent from theload/deflection curve.For a given static load, the deflection corresponds to the compression of the mount under thatload, but the stiffness about the position under load is given by the sub-tangent (the projectionof the tangent onto the axis). This is the elasticity which determines the natural frequency of themounting.

For most PAULSTRA mounts, the load/deflection curve is linear in the region of static loads (fig.18) and, as a result, the sub-tangent and the deflection are identical.

The curve in fig. 17 is typical of EVIDGOM mounts.For these it is best to work at the point of inflection of the curve where the sub-tangent is thelargest possible and so the natural frequency is as low as possible.The deflection does not indicate the amplitude of the oscillations of the machine.

IV.3.2 - Operating regions

The region OM is the static load region. The deflection is approximately proportional to theload.

In the data sheets, the coordinates of the point M are given as the NOMINAL STATIC LOAD.

The region MP is the dynamic load region corresponding to normal, repeated shocks providedthat the rate and total deflection stay within normal limits.

In the region PZ, which corresponds to exceptional, accidental shocks, the curve rises rapidly.The stiffness increases progressively which has the effect of reducing the amplitude of themovement. Note that, because of the natural damping properties of the rubber, this increasealso depends on the speed of impact.

Fig. 17

Fig. 18

K 1ωo = C√ __ = √ __________ (C = constant)

M sub-tangent

staticload

load

load

actual deflection

sub-tangent

deflection

deflection

M

P

Z500

400

300

200

100

0 5 10 15 20

m

IV.3 - DETERMINING THE DEFLECTION

24

IV.3.3 - Attenuation - Excitation frequencyAt a given excitation frequency ω, the attenuation depends on the natural frequency ωo and thusthe sub-tangent.With most rotating machinery, the excitation frequency in cycles per minute can be taken to bethe rotation speed in rpm.As indicated on the chart (fig. 6, in § III.2.1.2) for a natural frequency in a known direction, theaim is to obtain the highest possible attenuation within the constraints of the load / deflectioncharacteristics of the mounts.The deflection selected must not be so high as to be detrimental to the stability of thesuspension.If the operating point is not within the vibration isolation zone, our Technical Services should beconsulted.

IV.3.4 - Static stiffness - Dynamic stiffness - Natural frequencyWhereas deflection and sub-tangent are given by the static stiffness curve of the mounting, it’snatural frequency is linked to the dynamic stiffness. In the case of elastomeric mountings, staticand dynamic stiffness can be different.The ratio between static and dynamic stiffness depends on the input amplitude, the frequencyand the type of elastomer. Under nominal load, the natural frequency is given for indication only.For a different load, the natural frequency could be found with the following formula:

nominal loadFp (actual load) = Fp (nominal load) x √______________

actual loadThis approximate is valid only if the actual load is in the linear part of the load/deflection curve(Fig. 17 & 18).

PAULSTRA mounts are classified according to their stiffness characteristicsTherefore, after having determined the number and deflection of the mountings as describedabove, the choice of mounts depends on the direction of the excitation.• Equi-frequency mounts: the flexibility is approximately the same vertically as horizontaly.• Mounts with high axial flexibility: high axial flexibility while supporting radial loads.• Mounts with high radial flexibility: high radial flexibility while supporting axial loads.• Low frequency mountings: high sub-tangent to achieve a very low natural frequency (a few

Hertz).

IV.4.1 - Suspension for a fan• Characteristics of the equipment:- Weight: 3000 daN.- Speed of rotation: 1200 rpm.- Fan mounted on a 2.5 x 3 m chassis with no constraint on the position of the mounting fixingpoints.- Known centre of gravity.Number of mounts: after trials, using successive approximation to balance the moments ofinertia, 12 mounting points were selected.Load per mounting = 3000/12 = 250 daN.Natural frequency of the mounts (see chart).For an input frequency (or speed of rotation) of 1200 rpm, the maximum natural frequency is 14 Hz.A natural frequency of 7 Hz will achieve a reasonable attenuation of about 85%.Therefore, a mounting system.with a natural frequency of 7 Hz under 250 daN is required.As it is a rotating machine with no special characteristics, isometric mountings are selected.The selection guide gives a PAULSTRADYN mount with a 8 mm deflection under a 260 daNload. According to the data sheet for PAULSTRADYN mounts, the PAULSTRADYN Ø 100hardness 60 has a deflection of 7.4 mm under a load of 240 daN, which is just right.

• Suspension characteristics:- 12 PAULSTRADYN 260. Mount part number 533712.

Real load 250- Ratio ____________ = ____ = 0.96

Nominal load 260

- Attenuation �85%*.- Loaded height �32.5 mm*.* These values are given by the Paulstradyn data sheet.

IV.4 - DESIGN EXAMPLES

25

IV.4.2 - Suspension of an engine/hydraulic pump unit mounted on an excavator

• Characteristics of the assembly:

- Weight: 1200 daN.- Speed of rotation: 1500 rpm.- Known centre of gravity.- 6 mounting points.

Load per mounting: 1200/6 = 200 daN.Deflection (see chart, fig. 5).For a frequency of 1500 rpm, a deflection of 3 mm will achieve an attenuation of approximately85%.

The vibrations are predominantly vertical and the unit needs to be restrained laterally to copewith the movement of the excavator in operation. Mountings with dominant axial flexibility areselected.

The PAULSTRA mount selection guide shows a STABIFLEX mount with a deflection of 5 mm fora load of 210 daN. According to the STABIFLEX mounting data sheet, the mount required is aSTABIFLEX 530622 hardness 45 with a square base.

• Suspension characteristics (under 1200 daN at 1500 rpm):

- 6 STABIFLEX mounts reference 530622 hardness 45.- Deflection 4.7 mm.- Theoretical attenuation 85% (16 dB).

IV.4.3 - Suspension of a sieve

• Characteristics of the equipment:

- Weight: 400 daN.- Vibration frequency (horizontal): 1200 cycles/mn or 20 Hz.- Known centre of gravity.- 6 mounting points.

Load per mounting: 400/6 = 66 daN.Deflection (see chart, fig. 5).For a frequency of 20 Hz, a deflection of 6 mm will achieve an attenuation of approximately 70%.

Mount characteristics required:

1) mounts which will withstand the vertical load;

2) mounts with a radial flexibility very much greater than the axial flexibility (mounting with dominant radial flexibility);

3) providing vibration isolation vertically (axially), which, taking account of requirement (2), willassure the horizontal vibration isolation.

The PAULSTRA mount selection guide gives a RADIAFLEX cylindrical stud giving a deflectionof 8 mm for a load of 70 daN.According to the RADIAFLEX mounting data sheet, the mount required is a stud Ø 30 height 30mm with 2 mounting bolts (ref. 521312).The radial flexibility (shear) is considerably higher than axial flexibility (compression).

• Suspension characteristics:

- 6 RADIAFLEX cylindrical mounts with 2 screws reference 521312 (theoretical vibrationattenuation: 80% - 14 dB).

26

IV.4.4 - Suspension of a compressor unit

• Characteristics of the assembly:- Weight: 6000 daN.- Speed of rotation: 400 rpm.- Known centre of gravity.- 8 mounting points.- Load per mount: 6000/8 = 750 daN.

• Deflection of mountings:For a frequency of 400 rpm, the minimum deflection to be within the vibration isolation regionis 12 mm. The PAULSTRA mounting selection guide gives a low frequency mounting which canprovide sufficiently large deflections (26 mm).According to the EVIDGOM mount series data sheet, the mounting required is an EVIDGOMmount Ø 125, height 140 mm, reference 810784 which gives a deflection of 26 mm under a loadof 800 daN.

• Suspension characteristics:- 8 EVIDGOM mountings reference 810784, Ø 125 mm, height 140 mm.- Deflection 26 mm.- Attenuation 37% (4 dB).Note: as the low frequency mounts are tall, for some applications (sideways forces) it may benecessary to provide lateral stops.

IV.4.5 - Suspension from a ceiling (false ceiling, ventilation units,pipework)

- For light loads of 15 to 135 kg per item our TRAXIFLEX mount may be used directly.

Example of use:False ceiling - load per mount 50 kg - frequency of excitation 25 Hz - mounting selected 535611hardness 45 - deflection under load 4 mm - theoretical vibration attenuation 77% - 13 dB.

- For heavy loads, it is necessary to use a PAULSTRADYN, STABIFLEX or EVIDGOM mountingwith a safety fixing.

Example of use:1. Suspending a ventilation unit - weight 1000 daN - frequency 25 Hz - 4 PAULSTRADYN

mount Ø 100 reference 533712 - natural frequency � 7 Hz - theoretical vibration attenuation90% - 20 dB.

2. Suspending a special 5 tonnes machine requiring accurate radial positioning - frequency20 Hz - 4 STABIFLEX mount reference 530652 hardness 60 - deflection under load 8 mm -

theoretical vibration attenuation 84% - 16 dB.

3. Suspending a 20 tonnes tank subject to longitudinal expansion - frequency 15 Hz - 4EVIDGOM mount reference 810733 hardness 60 - deflection under load 50 mm -theoretical vibration attenuation 95% - 26 dB.

Mounting examples:

Fixing to ceiling

Using PAULSTRADYNUsing STABIFLEX

Using EVIDGOM

Suspendedequipment

28

INDUSTRIAL RANGE OFELASTOMERIC

MOUNTING SYSTEMS

29

HIGH SHEARFLEXIBILITY

LOWFREQUENCY

MOUNTINGS APLLI

FANS

Pages p 32 p 36

AIR CONDITIONING

PUMPS

COMPRESSORS

GEARBOXES

GENERATING SETS

IC ENGINES

PLANT CABS

VIBRATING TABLES/SCREENS

HOPPERS

MACHINE TOOLS

PRESSES GUILLOTINES

GANTRIES

CIVIL ENGINEERING

CEILING, PIPEWORK

LABORATORY EQUIPMENT

ELECTRICAL ENCLOSURE MOBILE OF FIXED INSTALLATION

TRANSFORMERS

FRAGMENTERS

SIEVES

HIGHRADIAL

FLEXIBILITY

HIGH AXIAL

FLEXIBILITYPRIMARILY AXIAL LOADING

APPLICATIONS

S.C.PAULSTRADYN®RADIAFLEX®

In general :For fixed installations : RADIAFLEX. PAULSTRADYN and BECA . For mobile installations : STABIFLEX, S.C.,S.T.C.Avoid using the mount with the rubber to metal bond area in tension. These mounts should only be used in compression or shear.

COMPUTERS

SHIPBOARDELECTRONICS

PROTECTION AGAINST BUMPAND SHOCK

SANDWICH STABIFLEX

COVERS OR ENCLOSURES

ÉVIDGOM®

p 40 p 46 p 49 p 57

30

STRASONIC

CATION GUIDE

Recommended application Admissible application

ARDAMP®

TRAXIFLEX® SPECIALPACKAGING

S.T.C. NIVOFIX® SPECIALELECTRONICS

SAME AXIAL & RADIAL FREQUENCY

BECA VIBMAR*

PRIMARILY AXIAL LOADING ACOUSTIC

p 61 p 79 p 82 p 106 p 103 p 126p 89 à 102 p 134p 109

32

RADIAFLEX

• Metalwork: mild steel, plated.

• Natural rubber, bonded, cylindrically shaped.

• Welded fixings: 5 styles (single side threaded stud, single side

threaded hole, double threaded stud, double threaded hole,

combination fixing).

European thread standards are not always consistent with French threadstandards so Paulstra has created the Radiaflex Europe range based onthose standards.

The end stop version is now available with a threaded hole in addition

to the threaded stud

The design of the RADIAFLEX mount gives the following basiccharacteristics:

• Radial elasticity greater than axial elasticity.• The rubber works in:

- compression (axial).- shear (radial).- compression/shear according to the fixing method.

Advantages:

• Simple to fix.• Simple and economical.• Extensive range:

- 13 stud diameters.- Several heights for each diameter.- 5 methods of fixing.

Recommendations:• Operation in shear is very useful for vibration isolation provided that

the radial forces are not too great.

DESCRIPTION

CHARACTERISTICS

33

40

E4432FO16M38

950950600500450

4535353535

M14

3030407080

557

1517

Ref.Deflect.(mm)

Max.load(daN)

Deflect.(mm)

Max.load(daN)

G(mm)

CB(mm)

10

Ø A(mm)

15223040

253645

253545

2028354045

3040

521601521603521641

25400300250

58

11

303030

4.579

60 M10

25300250190

68

11

252525

4.579

521580521581521582

M1050

25450350300

81114

353535

6.51115

521705521710521711

70355070

M10

28 600 9 40 7 52165840 M12521803521840521841521842521843

779

1719

4040404040

80

100 471100

900750

81219

606060

71017

521908521909521910

405580

M16

521293521128521295

1.524

1.52.52.5

233.5

1210

810M5

101520

M4 10 20 1.53 2.5 1.5

2521650521651

1015

M6 16.5

4035303025

0.634.55.57

5554.54.5

12.53.54.54.5

521178521249521297521299521319

8.515202530

521292521294521296521298

1.5245

2.52.52.52

1.5345

20201515

12M510152025

521655521656521652521653

1.52.546

8888

1.52.527.5

80605050

2.5467.5

11111111

3589

90807060

25M8

101522253040

18M610152030

521308521310521312521314

12.5

30

513601511625511635511645

369

11

350400300250

25M1022253645

60

511525511535511545

69

11

300250190

25M10253545

50

40

511308511310511312511314

511265511270511251511275511280511285511290

511110511128511115511125

22.533.5

121110

8

10M51013.51520

12.5

16

3.5689

90807060

25M815223040

30

Ref.Compression

B(mm)

1015

Deflection(mm)

Max. load(daN)

C

511150511151

232010M4

G(mm)

Ø A(mm)

2345

20201515

101520258,515202530

M5 12511292511294511296511298511200511215511220511225511230

1.5455.57

M6 16.5

4035303025

20

25.510151922253040

511450511401511452511454511456

568

1011

160150120120120

25M10

2025354045

511157511161

710

12012020M830

40

Threaded hole fixing on request (except Ø 12.5).See current price list for availability of items.

DIMENSIONS AND COMPRESSIVE LOADS

* The shear characteristics are measured under Axial Load.

See also E3RP range p.91 :Threaded studs

SINGLE STUD FIXING DOUBLE STUD FIXING

M8M8 20

80605550505050

23.54.55.568

10

1880605050

23.558

511158511155511159511160

10152030

M6

25450350300

91214

511735511750511770

70355070

M10

4535353535

1100950600500450

68

101719

513801511830511840511870511880

80

2530407080

M14

Compression Shear*

16

20

20

806050505050

1.52.545.57.5

10

888886.5

1.52.544.566

521340521341521251521342521343521344

25.5

25

160150120120120

468

1011

2020202020

35.56.57.59

521450521401521452521454521456

M10

20 150120

610

2020

5.57.5

521181521657M8

Ø A Ø A

CC

GB B

G

34

C

25.5

M6 4 35 4 51115420 15

M6 4605550

3.55.58

511164511162511163

25.5152030

M8 6 80 6 51115630 22

M10 8

150120120120

4.57

1011

20202020

520520520521520522520523

28354045

5.56.57.59

40

H(mm)

Max.load(daN)

Deflect.(mm)

Max.load(daN)

Deflect.(mm)

Ref.B(mm)

C

47

1100900750600

8121223

7101720

60606060

520100520101520102520103

100

405580

100

M16 14

70

801235

600500400

81719

404040

520044520045520046

407080

M147

1517

925450350300

7.51014

353535

520040520041520042

355070

M106.5

1115

825 300250

810

3030

52003852003960 36

45M10 7

9

25 250190

811

2525

52003552003650 35

45 M10 798

M8 20 150120

4.510

2020

520056520058

3040

5.57.56

M10 25

160150120120120

457.5

1011

2020202020

520029520030520031520032520033

402028354045

35.56.57.59

8

M8 25

90807060

34.57.59

11111111

520025520026520027520028

30

15223040

2.5467.5

6

M6 18605050

2.53.57.5

888

520052520055520057

152030

8.546

4

M8 20

50505050

3.557.5

10

8886

520021520022520023520024

22253040

44.566

6

M6 16.5

35303025

2.54.55.57

554.54.5

520015520016520017520018

20

15202530

2.554.54.5

4

14

1110900

1100600750600

812

8101923

6060

180140

6060

71010121720

520541520542520545520546520543520547

100

4055607580

100

M16

10 600 7 40 52055640 M12 7.5

12600500450

71719

404040

520534520535520536

407080

M147

1517

80

8 250190

710

2525

52052552052650 35

45 M10 79

8 300250

79

3030

52052852052960 36

45 M10 79

9450350300

79

14

353535

520530520531520532

70355070

M106.5

1115

30

25.5

M8 6807060

47.59

111111

520516520517520518

223040

467.5

M8 6 150120

4.510

2020

520552520553

3040

5.57.5

520010520011520012520013

1.5245

2.52.52.52

1.5345

M5 12 320201515

10152025

M6 4 5050

37.5

88

520554520555

2030

46

28 600 8 40 52005940 M12 710

H(mm)

1.53

2.52.5

1.52M4 2.5 520550

5205511015

20202 1.5

32.5 1.5

2.5

Deflect.(mm)

Max.load(daN)

COMBINATION FIXING THREADED HOLE FIXING

Ø 16 mounts with threaded holes are fitted with RAPID nuts. Maximum torque1.8 m.N.

See current price list for availability of items. * Shear characteristics are measured under axial load.

G(mm)

Max.load(daN)

Deflect.(mm)

Compression Shear*

Ref.Ø A(mm)

B(mm)

C

M4 10 520053520054

16

1015

Compression Shear*Ø A(mm)

M5 320201515

2.52.52.52

520500520501520502520503

16 10152025

1.5345

M6 4

35303025

2.54.55.57

554.54.5

520505520506520507520508

20

15202530

M8 6

50505050

34.57.5

10

8886

520511520512520513520514

22253040

1.52452.53.54.54.5

44.566

20

Max load(daN)

H(mm)

Deflect.(mm)

CompressionRef.Ø A

(mm)B

(mm)

M4 2.5 2020

23

51115251115316 10

15

C

Ø A

H

B

ONE THREADED HOLE

C

Ø AØ A

C

C

HH

BG

B

35

G(mm)

1016.5252020253545

1419284444607076

DIABOLO MOUNTS

ASSEMBLY

See current price list for availability of items. * Shear characteristics’ are measured under axial load.

Ø A(mm)

12.520405757608095

M5M6

M10M8M8

M10M14M16

0.31.63.159.5

19.538.550

312304075

150300400

1.42.555589.59.5

0.532.57

12305570

1.254.556

109.58

521300521201521403521571521572521602521801521951

B(mm)

S(cm2)

C

Compression( P )

Shear*( F )

Ref.MaxLoad(daN)

MaxLoad(daN)

Deflec-tion(mm)

Deflec-tion(mm)

Compression

Compression/Shear Shear

The fixing holes for the Radiaflex mountsshould have a chamfer with a depth equal tothe pitch of the thread.Ex. 521401: M10 x 150 chamfer = 1.5 mm

521951: M16 x 200 chamfer = 2 mm

C

C

Ø A

S

GB

G

(cm²)

S(cm

2)

Depthof

thread(mm)

Ø A(mm)

80 60 M14 15.5 38.5 250 5 70 8 521802

B(mm)

C

Compression Shear*

Ref.MaxLoad(daN)

MaxLoad(daN)

Deflec-tion(mm)

Deflec-tion(mm)

P

F

P

36

PAULSTRADYN®

•Better than 90% isolation at 1.500 rpm(25 Hz).

•Constant height over wide load range.•Stabilised characteristics during Service Life.•Simple to fit.•500 hours protection against salt spray*.•Design.

* When mounted according to the recommendations given inthe catalogue.

Resilient Element = SILTECH- Low increase of stiffness with frequency- Low creep

ADVANTAGES

Finite element modeling (FEM) was used whendesigning the Paulstradyn series resulting in thelowest possible elastomer stresses and mostefficient performance for a high deflection mountof this type.

Natural frequency:• axial 7 Hz• radial 3 to 5.5 Hz

37

3

Antivibration isolation for static equipment:- rotating machinery such as fans, air-conditioning, pumps, compressors, generator sets.- pipeworks, ceilings, transformers, electrical enclosures.

APPLICATIONS

DIMENSIONS

* Height, unloaded 40 mm, under load 32 mm (see Technical Characteristics). NL: Nominal static load with mounting under axial compression.

47

12401

2

2

2

2

80

100160200260

2

Designation

Paulstradyn 47

12

Paulstradyn 203050

Paulstradyn 70100130



Paulstradyn 640820

10501350

Ref.

533701533702533703

533704533705533706

533707533708533709

533710533711533712

533713533714533715

533716533717533718533719

Ø A

150

200

B* C D E F G H Ø I J N

Dimensions (mm)Nominalload

NL (daN)

203050

70100130

325400500

640820

10501350

Fig.

60

40

40

40

40

40

40

M10

M12

M16

M6

M6

M8

124

182

240

52

76

100

10.2

12.2

14.2

6.2

6.2

8.2

16.2

20.2

24.2

6.2

8.2

12.2

2.5

2.5

2.5

4.5

5.5

152

214

280

64

90

122

104

154

204

44

64

84

68

116

159

12

32

48

10

10

20

6

6

12

C

Ø I

Ø A

F

D

E G

HEG

J

B

N

J

N

B

Ø A

Ø I

C

Fig. 1

Fig. 2

38

TECHNICAL CHARACTERISTICS

The vibration attenuation and height characteristics under nominal loads are stabilised after onemonth under a load at 20°C.

Common characteristics • Natural axial frequency: 7 Hz, with nominal load.• Natural radial frequency: 3 to 5.5 Hz.• Maximum displacement:

- axial: 12 mm.- radial: ± 10 mm.

Height under load

Temperature

Other characteristics*

Operating temperature: - 20°C to + 70°C.

• Good dynamic performance at high frequency.

• Withstand fatigue and shocks.

• Reduced creep.

* Detailed Technical Characteristics can be sent on request. Askus for details.

AL NL

= 0.8

AL NL

= 0.7

AL NL

= 0.9

AL NL

= 1

900 1500 2100 2700 3300 3900 4500 5100 5700

20

14

10

8

6

100

90

80

70

60

5010 20 30 40 50 60 70 80 90 100AL Actual load____ = Ratio _______________

NL Nominal load

Vibration attenuation Rotating speed (rpm)

Excitation frequency (Hz)

Att

enu

atio

n c

oe

ffic

ien

t (%

)

Att

enu

atio

n (

dB

)

Stabilised height vs load

AL/NL ratio (actual load/nominal load)

He

igh

t un

de

r lo

ad (

mm

)

39

Diameter K(mm) M6 M8 M10

torqueN.m. 2 5 12

M12

20

Note: Do not paint the mountings after fitting.

Alternative mounting

Standard mounting

Recommended torque

① machine base or footdimensions > Ø M*

① supporting structure (floor)dimensions > base of mounting F* * to ditribute the load and resist corrosion

③ screw Ø C**

④ screw Ø K, a washer is required between the screwhead and the PAULSTRADYN**

⑤ screw Ø K, a washer is required between thescrew head and the PAULSTRADYN**** nuts and screws grade 4.6 minimum.

MOUNTING

ON CONCRETE ON CHASSIS

Fig. 1

①

⑤

③ ④

25 M

ax

25 M

ax

K

Ø M

Paulstradyn references

Dimensions (mm)

KFig. 1

M5M5M6M8

M10M12

2740464799

127

14345070

118162

L maxFig. 2

M minFig. 1

Protective capreference(optional)

342919342356342733342734342353342354

533701, 533702, 533703533704, 533705, 533706533707, 533708, 533709533710, 533711, 533712533713, 533714, 533715

533716, 533717, 533718, 533719

Protective cap(optional - see table)

Ø L max

Mounting and cap references

Fig. 2

40

EVIDGOM®

The EVIDGOM mount is formed from two thick conical membranes,joined at their bases to create a highly elastic mounting.There are three variations:

• All rubber EVIDGOM.• EVIDGOM with bonded fixing.• EVIDGOM with a diamond or square mounting plate (fixing plate

supplied as a separate kit).

The design of the EVIDGOM mount gives the following basiccharacteristics:

• A very high axial elasticity.• Very low natural frequency (a few Hertz).• Progressive buffer against shocks or accidental overload.

Advantages:• As the load/deflection curve has a point of inflection, a suspension

may be designed to have a sub-tangent greater than the staticdeflection.

• The elastomer used provides intrinsic damping with a correspondingability to absorb energy which gives appreciable advantages overmetallic springs.

Recommendations:• The selection of a low natural frequency (large deflection) must not be

allowed to endanger the stability of the suspension (tall equipment).• In certain cases (use under maximum load) the use of side stops is

recommended.

(1) Natural frequencies with max/min loads, see: OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency:2.5 to 7 Hz

41

DIMENSIONS

Fig. 1 Fig. 2 Fig. 3

PP

BB B

T3 x TØ W

Ø AØ A

Ø A

Ø C 1

CØ C 1

Ø C 3 Ø C2Ø C2

Ø W

Lower fixing plate

Fig. bFig. a

D

G D F

E

D

H

Ø EF

Ø A (mm)

B (mm)

Evidgom referenceC Ø C1

(mm)Ø C2(mm)

Ø C3(mm)

Ø W(mm) T P

(mm)All rubber Fig. Withfixings

Fig.

34 25 810002 1 - - - 8 8 - - - -40 55 810003 1 - - - 14 14 - - - -50 70 810005 1 - - - 14 14 - - - -60 40 - - 810780 2 M10 - 25 25 40 M6 6 85 70 810006 1 810766 2 M16 20 30 30 60 M8 8 95 90 810008 1 810768 2 M16 20 30 30 60 M8 8

108 90 810009 1 810769 2 M16 20 30 34 70 M10 10 120 110 810012 1 - - - 20 30 - - - -140 120 810013 1 810773 2 M16 25 40 35 70 M10 10 125 140 810014 1 810784 2 M16 25 30 25 70 M10 10 140 90 810019 1 810779 2 M16 28 12 28 70 M10 10 140 56 810020 1 810770 2 M16 30 30 30 70 M10 10 155 150 810015 1 810775 2 M16 25 30 30 90 M14 14 188 180 810016 1 810776 2 M24 40 40 40 90 M14 14 250 230 - - 810733 3 - 70 70 - 150 6 X M24 40 350 290 - - 810736 3 - 85 85 - 196 8 X M24 40

Evidgom reference Fixing pack reference Fig. D (mm) E (mm) F (mm) G (mm) H (mm)

810780 337566 a 98/102 8,2 117 65 5

810766 337567 a 124/128 10,2 158 110 5

810768 337567 a 124/128 10,2 158 110 5

810769 337568 a 178/182 10,2 214 150 6

810773 337568 a 178/182 10,2 214 150 6

810784 337568 a 178/182 10,2 214 150 6

810779 337568 a 178/182 10,2 214 150 6

810770 337568 a 178/182 10,2 214 150 6

810775 337569 b 170 10,5 200 - 8

810776 337569 b 170 10,5 200 - 8

42

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

OPERATING CHARACTERISTICS

Nominalstatic load

(daN)

Deflect.± 15%

(mm)

Ø A mmunder

nominalcharge

HeightB

(mm)

Reference

5-1510-4020-8015-60

25-10035-150

100-400100-390150-600

51114101518202324

40506380

105124136134175

25558040709090

110120

810002810003810005810780810766810768810769810012810773

Nominalstatic load

(daN)

Deflect.± 15%

(mm)

Ø A mmunder

nominalcharge

HeightB

(mm)

Reference

200-800200-800200-800

325-1300500-2000

1250-50002000-80002250-9000

3500-14000

261610303550506060

170175166175240345345500500

1409056

150180230230290290

810784810779810770810775810776

810733Δ60810733Δ75810736Δ60810736Δ75

See current price list for availability of items.

43

SLM pneumatic mounts are made from synthetic rubber and arelaterally reinforced with steel springs.

The base plate is bored with 4 smooth holes to allow a possible fixingon the ground and the valve allows to inflate the mount in the same wayas an automobile tyre.

• Elastomer body (temperature range - 30°C to + 80°C) resistant tooils, the majority of solvents and natural ageing.

• The top and bottom plates are available in both steel and aluminium.

PNEUMATIC MOUNTS SLM

DESCRIPTION

OPERATION

Natural frequency:3 to 5 Hz

(1)

APPLICATIONS• Industrial plants, compressors, conveyors, vacuum pumps, generators,

air-conditioners, diesel engines, ventilators, presses with fast cycle, machine tools.

• Metrology: measuring apparatus sensitive to the external distur-bances, optical instruments, etc.


The design of SLM mounts gives the following basic characteristics:

• In the event of pressure loss, the machine will rest on the elastomer body. The load capacity of the mounting remains unchanged.

• The ratio of horizontal rigidity and vertical rigidity of the SLM is 1:1,which allows excellent stability.

Advantages:

• Eight sizes, capacity range of 10 daN to 10000 daN.• Allow you to level the machine gradually while varying the air

pressure.• Possibility of varying the natural frequency, by varying the air

pressure.

44

73.2105.2126.7171.2245.4338.1468.4609.6

*Barry Controls part numbers are given as a reference only.

Nominalstatic load

(daN)

76.2106.4130.0174.8254.0342.9469.9609.6

A(mm)

60.488.9

108.0152.4215.9304.8406.4508.0

B(mm)

M10M12M12M12M16M16M24M24

C

7777

14.214.220.620.6

Ø E(mm)

Ø F(mm)

63.562.288.988.988.988.988.988.9

G(mm)

25.444.454.176.2

138.2190.5266.7400.1

Ø H(mm)

12.712.714.214.214.214.214.214.2

J(mm)

3.23.23.23.24.84.86.46.4

T(mm)

0.50.71.52.56

11.826.045.0

Weig.(kg)

SLM-M1A

SLM-M3A

SLM-M6A

SLM-M12A

SLM-M24A

SLM-M48A

SLM-M96A

SLM-M192A

11 - 4534 - 13668 - 272

136 - 545272 - 1090545 - 2180

1090 - 43602180 - 8720

530904 01530904 02530904 03530904 04530904 05530904 06530904 07530904 08

BarryControls *reference

Paulstrareference

DIMENSIONS AND OPERATING CHARACTERISTICS


C

B

A

A

B

Ø E

Ø F

Ø H

G

JT

0

6

3

4

5

5

4

3

2

120 40 60 80 100 200 400 600 1000 2000 4000 6000 10000

P. b

ar

daN

Hz

5309

04 0

1

5309

04 0

253

0904

03

5309

04 0

4

5309

04 0

5

5309

04 0

6

5309

04 0

7

5309

04 0

8

PRESSURE OF INFLATION FOR STATIC HEAD ANDNATURAL FREQUENCY

45

Recommendations:

• The machine must rest on the supports before they are inflated to the level indicated ondimension " G ".

• Before any dismantling, the SLM mount must be deflated.• The surface of the machine must completely cover the surface (Ø F) of the mount. If it is not

possible, use a separate plate (thickness between 5 and 10 mm, according to the load) anddiameter equal to F + 10 mm. This is to obtain a base on the full surface. It is required for assembly and in the event of an air leakage.

• If necessary, it is possible to fix the supports using the four smooth holes on the bed plate.• Make sure care that the valves are protected.• Never overload the mounts. Always use the recommended load capabilities.

ASSEMBLY

Ø F

G

Correct installations

Incorrect installations

1 - AV mount 2 - Install the machinery 3 - Inflate the mount

Mount inflated before Floor not level Over inflated mountfixing the machinery

46

“SANDWICH”MOUNTS

The SANDWICH mount comprises one or more layers of elastomerbonded to flat, parallel metallic plates. These mountings may becylindrical or rectangular. They are designed to withstand very highcompressive loads. The range of mechanical characteristics is gover-ned by the hardness of the rubber and the number of intermediatemetallic plates.

These mountings can support compression from 20 to 100 bars.

The metal plates usually receive a phosphate anti-corrosion treatment.

The elastomer is polychloroprene which provides a high resistance toatmospheric exposure.

The design of the SANDWICH mount gives the following basiccharacteristics:

• Very slim.• Large surface area.• Stackable mountings.• The suspended equipment is free to move in all directions.• High ratio of axial stiffness to radial stiffness.• Very high axial loads.


DESCRIPTION

OPERATION

(1) Natural frequency:5 to 13 Hz

47

E

LL

B

H

HA

A

M

B

h

Ø C

D

==

MOUNTINGS WITH FIXING PLATES (Shape A)

MOUNTINGS WITHOUT FIXING PLATES (Shape B)


Nominalstatic load

(daN)

1000-4000

1250-5000

2500-10000

6250-25000

3750-15000

Deflection(mm)

8

7

6

3.5

5

Reference

539821

539608

539607

539267

539607

Hard.

50

60

45

70

60

Nominalstatic load

(daN)

5000-20000

7500-30000

11250-45000

15000-60000

Deflection(mm)

6

7

5

4

Reference

539612

539612

539613

539933

Hard.

45

60

60

60

Reference withoutintermediate plate

539608

539612

539613

-

539821

Reference withintermediate plate

539607

539933

-

539267

-

A(mm)

182

372

702

160

283

B(mm)

142

252

252

110

140

D(mm)

255

460

805

230

380

E(mm)

170

300

300

110

140

H(mm)

49

61

61

58

76

h(mm)

L(mm)

40

50

50

44

60

58

100

95

35

50

M(mm)

235

430

765

202

340

Weight(kg)

5

18

35

5

9.5

Nr holesx Ø C (mm)

6 x 9

6 x 13

6 x 17

4 x 15

6 x 18

Reference

539832539823539833539992539820539835539537539890539939539520539924539903539701519821519822519823

A (=D)(mm)

200220240250400405500510600650702800750200260280

B (=E)(mm)

165220200250300255500410500650252250750190230180

H(mm)

38270

38140

786166.582

125152

50190300

606060

Maximum static load(daN)

95 000150 000145 000200 000380 000310 000870 000700 000

1 000 0001 500 000

450 000480 000

2 000 000115 000185 000143 000

Shape BShape A

48

H

Ø A

Ø C

B

A H

h

CYLINDRICAL MOUNTINGS

DOMINANTLY RADIAL MOUNTINGS

Various types of fixing are available. Consult us for information.

Reference

539904544051539796539983539539539938539937539900544078544079544080

Ø A(mm)

115150200200275320350400600600860

H(mm)

Nominal static load(daN)

5411094.590

27519

105117167285300

1 50012 00018 000

5 0005 000

100 000110 000150 000300 000433 000650 000

A(mm)

* Multilayer laminated part. Various types of fixing are available.Please consult us for information.

Reference

534646

534647

534455

534456

539898*

539917*

539940

539806

544051*

h(mm)

B(mm)

H(mm)

Ø C(mm)

12.5

12.5

16.5

16.5

13

13

18

18

17

70

70

86

86

100

76

350

120

110

120

120

190

190

146

146

430 x 219

330 x 170

190 x 110

62

62

74

74

88

66

318

100

100

150

150

232

232

180

180

300 x 480

360 x 200

240 x 160

Shear(mm)

20

20

25

25

10

10

70

30

50

(daN)

200

150

500

625

400

250

4500

1200

1800

1 500

1 000

2 000

3 500

3 000

1 500

13 000

3 000

10 000

Compression(daN)

Dimensions can change. Please contact us.

Dimensions can change. Please contact us.

49

STABIFLEX

The STABIFLEX mount comprises a conical rubber section bondedbetween inner and outer metal parts.

• Centre axis with threaded hole.• Square (4 holes) or diamond base (2 holes) with clearance hole.• Bonded natural rubber, anti-slip bead.• Cup to protect the rubber and distribute the load.

The design of the STABIFLEX mount gives the following basiccharacteristics:

• Axial elasticity two or three times higher than radial elasticity.• The rubber works in shear/compression.• Progressive buffer against shocks or accidental overload.• Anti-slip (may be placed directly on the ground).

Advantages:• The machine may be placed with its mounts directly on the

ground.• Speed of fixing.• Easy movement of suspended machinery.• Rubber protected against harmful liquids.• Extensive range: 3 hardnesses of rubber for 5 existing types,

allowing the mount to be optimised as a function of the load andforcing frequency.

• May be used with an anti-rebound washer.

Recommendations:• In order not to affect the performances of the mounting system, all

external connections must be flexible.• STABIFLEX mounts must be fitted so that the vibration input is in

the axial direction.(1) Natural frequencies with max/min loads, see: OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION


50

DIMENSIONS


STABIFLEX - diamond base STABIFLEX - square base

* Part identified by the letter “R” (reinforced) See current price list for availability of items.

Ø E Ø E

B

F

F

D

D

D F

XX X’

X’

J

Ø A Ø A

CC

B

J

Nominalstatic load

(daN)

Deflection(mm)

Reference Hardness

10 - 4215 - 6020 - 93

30 - 12540 - 16550 - 21065 - 260

3.533.543.553

530603530603530613530603530613530622530613

45604575604575

Nominalstatic load

(daN)

Deflection(mm)

Reference Hardness

65 - 27595 - 380

110 - 450175 - 700

250 - 1000325 - 1300450 - 1800

4.53.588888

530622530622530642530642530652530652530652

60754560456075

Type Reference Hardness Ø A(mm)

B(mm)

C D(mm)

E(mm)

F(mm)

J(mm)

Weight(g)

Diamond base 530603530613

45.60.7545.60.75

6984

4151

M12M12

98115

911

114137

67

250450

Square base530622530642530652*

45.60.7545.60

45.60.75

100133133

526969

M12M16M16

90114114

111313

114144144

799

100023002700

51

ASSEMBLY


All our mounts are identified by conventional markings, either a paint spot or figures indicatingthe hardness: grey = hardness 45, green = hardness 60, blue = hardness 75.

• Fixing with anti-rebound washer- The anti-rebound washer (not supplied) is fixed to the lower side of the centre axis.- In this case, do not forget to fit a spacer.

Spacer thickness required:

530603 h: 2 mm

530613 h: 4 mm

530622 h: 7 mm

530642 h: 14 mm

530652 h: 14 mm

• Standard fixing methods

h

52

STABIFIX®

STABIFIX® AR

The STABIFIX and STABIFIX AR (anti-rebound) are made of a rubberring bonded to two metal shelves. The anti-rebound function isintegrated with the STABIFIX AR version.

• Upper part with a smooth or a threaded hole (depending on version).• Diamond base (2 holes) or square base (4 holes) for the lower fixing

(2 holes).• Natural rubber bonded.

The design of STABIFIX gives the following basic characteristics:• Axial elasticity greater than radial elasticity.• The rubber works in compression/shear.• Progressive buffer against shocks or accidental overload.

Advantages:• Speed of fixing.• Easy movement of suspended machinery.• Rubber protected against harmful fluids.• Extensive range: 3 hardnesses of rubber allow the mounting to be

optimised as a function of the load and input frequency.

Recommendations:• In order not to affect the performances of the mounts, all

external connections must be flexible.• STABIFIX and STABIFIX AR (anti-rebound) mountings must be fitted

so that the vibration input is in the axial direction.


DESCRIPTION

OPERATION


53

DIMENSIONS

All mounts are identified by conventional marking indicating the hardness.

530170530175Square base

Type Reference Hardness Ø A(mm)

B(mm)

C D(mm)

Ø E(mm)

F(mm)

J(mm)

Diamondbase

530181530184530185

45.6045.6045.60

82110101

354238

M10M16M16

110144144

111414

135175175

333

G(mm)

151518

7070

170170

Ø A1(mm)

608781

118118

6363

24.5M20

150150

1313

184184

44


Nominalstatic load

(daN)

Deflection(mm)

Reference Hardness

30 - 7570 - 160

110 - 220130 - 270180 - 380230 - 480

555555

530181530181530184530185530184530185

456045456060

1000 - 20001000 - 2000

55

530170530175

7070


Ø A1

Ø A

C

Ø A

Ø A1

C

D

G E

Ø E

J B

B

B

J

J

F

DF

Ø A

Ø A1

C

STABIFIX ARanti-rebound

530181 - 530184 - 530185

54

The CUPMOUNT is made of rubber rings that are each compression fitbetween two profiled metal structural components and the core.

• Internal structural element or core has an integral tapped hole.'• External structural element or base has four equally spaced mountingholes conforming to industry standard geometry and dimensions forcup style mounts.

CUPMOUNT

The design of the CUPMOUNT gives the following basic characteristics:

• The ratio of radial and axial rigidity of the elements is 1/1, which allows excellent stability.

Advantages:• Four models, load capacity of 1 to 1000 daN.• Support iso-stiffness into axial and radial.• Can be assembled multidirectional. Effective in compression, traction

and shear.• Chloroprene resistant to oils.• Easy and fast to install.

DESCRIPTION

OPERATION

APPLICATIONS


Engines, pumps, air conditioning, ventilators, transformers...The CUPMOUNT can also be used for suspended ceilings and formobile applications.


(1)

55

530906 31530906 32530906 33530906 34

530906 21530906 22530906 23530906 24530906 25530906 26530906 41530906 42530906 43530906 44

Maximum load(daN)

Static applicationMobile application

Paulstrareference

Barry Controls*reference

C1010C1015C1035C1050

6.5142645

C4100C4135C4200C4300

C2020C2040C2060C2075C2090C2125

C3125C3175C3300C3500

6.5142645

132434607292

264868

120144184

7011816025090

125165330

140236320500180250330660

530906 11530906 12530906 13530906 14

Barry Controls*reference

Paulstrareference

DIMENSIONS CHARACTERISTICS


Reference 530906

H

A

A

B

B

Ø D

Ø C

GI

TE

5876

168124

6075

175133

0.20.44.51.8

C1000

C2000

C3000

C4000

Weight(kg)

B(mm)

Ø C(mm)

5.26.4

13.511.9

Ø D(mm)

M6M10M16M16

E

20306519

G(mm)

28389063

H(mm)

18255938

I(mm)

1.62.34.74

T(mm)

530906 11/14530906 21/26530906 31/34530906 41/44


A(mm)


49.563.5143 108

56

mm

1

54

3

2

0,2

0,40,50,6

0,8

0,3

0 2 3 4 5 6 8 10 20 30 40 8060 100 200 300

15

20

30

40

Hz

daN

530906 11

530906 12

530906 13

5309

06 1

4

1

54

3

2

0,2

0,40,50,6

0,8

0,3

0 4 5 6 8 10 20 30 40 60 80100 200 300 400 600 1000

15

20

30

40

Hz

mm

daN

530906 21

530906 22

530906 23

530906 24

530906 25

530906 26

mm

1

456

810

3

2

0,2

0,40,50,6

0,8

0,3

0 20 30 40 60 10080 200 300 400 600 1000 2000 3000 5000

15

10

20

30

40

Hz

daN

530906 31

530906 32

530906 33

530906 34

mm

1

456

810

3

2

0,2

0,40,50,6

0,8

0,3

0 20 30 40 60 10080 200 300 400 600 1000 2000 3000 5000

15

10

20

30

40

Hz

daN

530906 41

530906 42

530906 43

530906 44


Reference 530906 11/14




Nat

ural

freq

uenc

y

Nat

ural

freq

uenc

y

Nat

ural

freq

uenc

y

Nat

ural

freq

uenc

y

57

S.C. MOUNTS

The S.C. mount comprises an annular section bonded between theinner tube and outer housing.The outer housing has a mounting flange (4 different types).

The design of the S.C. mount gives the following basic characte-ristics:

• Axial elasticity four times higher than radial elasticity.• The rubber works in shear.• Progressive buffer against shocks or accidental overload, provided

that a large metal washer is used to bear against the rubber dome.• Can be used as a fail safe assembly when fitted as in figure 1.

Advantages:• Extensive range: 3 hardnesses of rubber for 20 existing types,

allowing the mounting to be optimised as a function of the load andexciting frequency.

Recommendations:• In order not to affect the performance of the mounting system, all

external connections must be flexible.• S.C. mounts must be fitted so that the vibration input is in the axial direction.


DESCRIPTION

OPERATION


58

Reference

With fixing holes Without fixing holes

Ø A(mm)

202637.537.549.149.155.755.757.26566.5767487.586

118118118170170

6.28

12.112.112.212.218.218.218.220.220.222.222.240.240.260.260.260.28080

3.25.2----8.28.2----

10.58.58.58.5--8.5

10.510.510.510.512.212.2

312.51824203127393929474249476336669695

113

112840514760557070759390

110100120

98140170167185

1926----6969----867895

100--

114104145145145204204

25364848727270709090

107112100127120164164164230230

412

88

12121018181818181820202222223030

840

110130190290370480500560780880960

1300150022003000380071007700

711.5181818181919192828282833334646465353

11.5222233333333344455

B(mm)

Ø C(mm)

D(mm)

E(mm)

F(mm)

G(mm)

H(mm)

J(mm)

K(mm)

Weight(g)TYPE

S.C. 000S.C. 00S.C. 01S.C. 02S.C. 10S.C. 11S.C. 20S.C. 21S.C. 21S.C 30S.C. 31S.C. 40S.C. 41S.C. 50S.C. 51

S.C. 70 red.S.C. 70S.C. 71S.C. 80S.C. 81

531201531301

----

531216531611

----

531240531259531261531714

--531939531947531933531932531931531940531941

Fig. cFig. c

----

Fig. dFig. d

----

Fig. dFig. bFig. dFig. d

--Fig. dFig. bFig. bFig. bFig. bFig. bFig. b

----

531401531402

----

531701531702

--------

531902--------------

----

Fig. aFig. a

----

Fig. aFig. a

--------

Fig. a--------------


DIMENSIONS

Fig. a Fig. b Fig. c Fig. d

Ø C

HG J

B

Ø A

K

Ø EØ E D

F KK

D

F

F

E

K

D

F

Ø C

HG J

B

Ø A

Ø C Ø C

H H

G GJ J

B B

Ø A Ø A

F

59



Nominalstaticload(daN)

Deflect.(mm) Reference Hard.

35-15035-15040-17545-18045-19045-19055-22560-24060-25060-25060-25060-25060-25075-30080-32080-32585-35090-36090-36095-380

100-400105-420

1.53523353.52255524.54.53.54.54,534.52

531611531701531259531701531240531702531714531259531240531702531261531327531902531259531714531939531261531327531902531714531947531261

4560754560754560454575604560457575604545

75604575606060456075754545457560456060754575



1-62-8

2-105-207-30

10-4010-5015-6515-6515-7020-8020-8520-85

25-10025-10025-11030-12030-12030-13530-135

10.80.51.51.20.82.51.82.541.51.8433.51.5233.53.5

531201531201531201531301531301531301531401531401531402531216531401531402531611531216531701531402531216531611531240531702



110-440110-450110-450110-450135-550135-550150-600165-670175-700210-850225-900275-1100275-1100310-1250350-1400400-1600450-1800525-2100575-2300650-2600

3.536.56.52.53.552.56.56.5535

113

118.58.555

531939531327531902531933531939531947531933531947531932531931531932531932531931531940531931531941531940531941531940531941

6075454575606075454560756045754560607575

531401 531216

531932531702

60

ASSEMBLY

Fig. 1 - Fixing between theequipment and a metallic chassis(failsafe in mobile applications).

Fig. 4

Fig. 2 - Fixing between twobrackets onto a vertical surface(non failsafe).

Fig. 6 - Two mounts fixed face toface. Provides twice the deflectionunder the same load.

Fig. 3 - Fixing between the equip-ment and concrete (using locatingrings).

• Tandem Mounting

• Standard Installations

• Reversed Installations

Fig. 5 - Fixing between inertia baseand foundation. The inertia baseincreases the suspended mass andthus reduces the amplitudes of thevibrations as well as lowering thenatural frequency.

staticchassis

staticchassis

Load

Load

531327 531941

61

S.T.C.

The S.T.C. mount comprises a rubber ring bonded to a central tube.

• Inner tube: mild steel.• Bonded rubber in the form of a ring at the top with a collar below

which is used for fixing.

The design of the S.T.C. mount gives the following basic characteristics:

• The rubber works in compression.• Anti-rebound.• Can be used as safety mounting.

Advantages:

• Simple to fix.• Simple and economical.• Extensive range of loads.


DESCRIPTION

OPERATION


62

DIMENSIONS


ASSEMBLY

Reference Ø A(mm)

B(mm)

Ø C(mm)

Ø D(mm)

E(mm)

Ø F(mm)

G(mm)

539887539190539886539191

* 539920539951

20.631.534.341.13856.6

17.525.43544.52350.8

101313161620

27.744.550.863.56495

5.610.413.515.71625.4

20.631.534.341.138.556

81016191920

* This S.T.C. is mounted in pairs: see Fig. 2. See current price list for availability of items.

Reference HardnessNominal

static load(daN)

Deflection(mm)

539887

539190

539886

4560

4560

6075

8-3510-50

15-7525-100

35-15080-330

0.70.7

1.21.2

1.21.2

Reference HardnessNominal

static load(daN)

Deflection(mm)

539191

539920

539951

6075

4575

4565

60-250125-500

100-400250-1000

175-700250-1000

22

21

33

Fig. 1 Fig. 2 (For 539920)

Ø D

Ø F

Ø C

Ø A

B

G

E

63

The 22000 mount is made of two parts of elastomer bonded to a centraltube.

• Interior reinforced: cylindrical tube.• Elastomer: chloroprene. Range of five different stiffnesses.

MOUNT 22000

The design of the 22000 mount gives the following basic characte-ristics.

• Elastomer element resistant to oils, supporting axial and radialloadings.

• Axial to radial stiffness of 1: 1.• Absorb vibrations and reduce noise in all directions.

Advantages:• Good isolation against structural noises.• Chloroprene resistant to oils.• Simple and economical.• Simple to fix.• Five sizes for a load capacity under axial pressure from 15 to 2100 kg

and under radial pressure until 650 kg.• Anti-rebound effect when it is assembled with a washer.

DESCRIPTION

OPERATION

APPLICATIONS22000 mounts can be used in static or mobile applications, such as:pumps, compressors, generators, electronic equipment, HVACequipment, engines with internal combustion, transmissions, plantcabs, radiators, etc.



64

Zinc plated steel washers are recommended for the assembly of the mount.They make it possible to carry out debouncing.

Ø a

e

Ø b


Supportstructure

Snubbingwasher

Isolatedequipment

Snubbingwasher

D

Ø A

E

Ø B Ø B

R

E

D

R

Ø C

Ø G FFØ G

Ø C

G: Ø mounting holeC: Ø elastomerF: Free heightR: Radius required

Isolatedequipment

Supportstructure


washer*

530903 11 to 15530903 21 to 25530903 31 to 35530903 41 to 45530903 51 to 55

PAULSTRAReference*

39.654.171.398.5

133.3

Ø a(mm)

10.313.516.723.827.0

Ø b(mm)

2.23.44.76.39.5

e(mm)

2454

140368991

Weight(g)

* Not supplied.

E: support structure thickness can be E1 or E2 depending on the required load and naturalfrequency (see technical chart next page).

33.2

47.7

64.8

88.9

123.9

Ø B(mm)

20.1

33

40.1

58.4

64.8

10.4

13.5

16.7

23.8

27

Ø C(mm)

12.3

19.8

22.8

25.4

31.7

9.5

14

22

28.5

32

31.7

49.2

61.7

73.1

85.8

Weight(g)

Ø A(mm)

43

142

313

670

1306

D(mm)

F(mm) E1

(mm)E2

(mm)Ø G(mm)

R(mm)

22001-11 to 15

22002-11 to 15

22003-11 to 15

22004-11 to 15

22005-11 to 15

19

31.7

38.1

57.1

63.5

9.5

12.5

19

25.5

25.5

1

1.5

2.3

3

3

530903 11 to 15

530903 21 to 25

530903 31 to 35

530903 41 to 45

530903 51 to 55

BarryControls*reference

Paulstrareference

Mounting hole

65


5309

03-1

4

5309

03-1

3

530903-12

530903-11

5309

03-1

5

Support structure thickness E2Load per mount

913182227

Radial(daN)

Axial(daN)

Paulstrareference

BarryControls*reference Axial

(daN)Radial

(daN)Fo(Hz)

E1(mm)

Support structure thickness E1Load per mount

22001-1122001-1222001-1322001-1422001-15

22002-1122002-1222002-1322002-1422002-15

22003-1122003-1222003-1322003-1422003-15

22004-1122004-1222004-1322004-1422004-15

22005-1122005-1222005-1322005-1422005-15

184063

113136

913182227

5979

109172286

22294075

127

95159222390604

4063

102175313

122231350531954

61104156268443

518877

117216092072

109154277404640

15 9.5

12 14

11 22

10 28.5

10 32

Fo(Hz)

E2(mm)

184063

113136

275472

118172

18365681

127

4068

102147227

314772

111163

68136181227272

50100136181263

136227318409545

68100136213300

15 9.5

15 12.5

15 19

15 25.5

15 25.5

530903 11530903 12530903 13530903 14530903 15

530903 21530903 22 530903 23530903 24530903 25

530903 31530903 32 530903 33530903 34530903 35

530903 41530903 42530903 43530903 44530903 45

530903 51530903 52 530903 53530903 54530903 55


The maximum loadings depend on the compression of the assembly by comparing thethicknesses E1 and E2.


Support structure thickness E1 and E2

Barry Controls part numbers are shown as a reference only.

colour

marking

Red & WhiteYellow & WhiteGreen & WhiteBlue & White

Purple & White


Purple & White


Purple & White


Purple & White


Purple & White

66

530903 41530903 42530903 43

5309

03 4

4

5309

03 4

5

530903 41530903 42

530903 43530903 44

5309

03 4

5

530903 51530903 52530903 53

5309

03 5

4

5309

03 5

5

530903 51530903 52530903 53

5309

03 5

4

5309

03 5

5

530903 31530903 32

5309

03 3

3

5309

03 3

4

5309

03 3

5

530903 31530903 32530903 3353

0903

34

5309

03 3

5

5309

03 2

5

5309

03 2

4

5309

03 2

3

530903 22

530903 21530903 21530903 22530903 23

5309

03 2

4

5309

03 2

5

Support structure thickness E1 Support structure thickness E2

67

TRIAXDYN

This anti-vibration mount comprises two elastomers which areassembled into a casting and pre-loaded.

The mounting is designed to offer:• a large deflection (in axial),• different stiffness in three axis,• built-in stops to limit movement in all directions.

Note: The mount body can be modified to offer alternative interfacedimensions providing the internal interface with the elastomer ismaintained.

DESCRIPTION

This mount has been designed to isolate engines or cabs in fixed ormobile applications with a high level of isolation and shock protection.Its compact design enables fail safe suspension of loads from 150 to280 kg.

It is suitable for:• Engine mounting.• Cab mounting.• Equipment mounting.

APPLICATIONS

68

OPERATING CHARACTERISTICS AND DIMENSIONS

• Nominal load:- 150 to 280 kg.Possibility to extend, on request, the load rangeup to 350 kg.

• Different stiffness in three axis (for a hardness50):- Axial on Z: 500 N/mm,- Radial on X (in direction of voids): 350 N/mm,- Radial on Y (at 90 deg. to voids): 500 N/mm.The geometry of the part provides low dynamicstiffness in the vertical dimension.

• Maximum deflection:- Axial: ± 10 mm, ± 4 g,- Radial: ± 6 mm, ± 2.5 g.

• Operating temperature:- 40 up to + 80°C.

• Salt spray protection 400 h. for external alumi-nium metalwork.

Ø B

48.7

5

Ø 48

Ø A

28

9

133

Ø 1

08

158

18.5

C

Ø 12.5

X

Y

Z

66 u

nloa

ded

Mounting:

Reference Ø A(mm)

Ø B(mm)

C(mm)

905233 12.4 94 128

69

ENGINE MOUNTING SYSTEMS

This engine mount is made of one conical elastomeric elementenclosed in a cast iron assembly. A built-in adjustable stop limits thevertical and lateral displacement during shock. This mount is availablein four different alternatives depending on the type of upper fixing needed.It can be supplied with or without levelling system and with a threadedhole or a threaded stud.

This mount has been designed to suspend fixed or mobile generatorswhich require a high level of vibration isolation and shock protection.The load per mount varies from 600 kg to 2300 kg. This load range iscovered by 5 different variants (12 to 16) clearly identified by acoloured marking (see table).

This mount is available in four different alternatives depending on thetype of upper fixing needed:

• 905201: No levelling system - M24 x 3.00 threaded hole• 905202: Built-in levelling system - M24 x 3.00 threaded hole• 905203: No levelling system - M24 x 3.00 threaded stud• 905206: Built-in levelling system - M24 x 3.00 threaded stud


DESCRIPTION

OPERATION

(1) Natural frequency: 6 Hz

70

OPERATING CHARACTERISTICS AND DIMENSIONS

Ø 18

190

230

133

unlo

aded

160

max

imum

hei

ght

12

140

180

R 20

M24 x 3.00

Ø 96

• Load range:Please refer to the chart below for the different variants and their colour marking.

• Deflection under static load :6,5 to 11 mmNatural frequency : 5 to 6,5 Hz.

• Maximum displacement:Vertical (Axial): ± 6 mm.Lateral (Radial): ± 4 mm.

• Structural resistance:Vertical (Axial): ± 4 g.Lateral (Radial): ± 2 g.

• Operating temperatures:- 10°C up to + 70°C.

• Unit weight:11.5 to 12.8 kg (depending on the variant).

Load range Variant Color

600 - 850 kg850 - 1150 kg

1100 - 1450 kg1400 - 1900 kg1700 - 2300 kg

1213141516

WhiteYellowGreenBlue

Purple

Reference 905202

Ref. 905201 Ref. 905202 Ref. 905203 Ref. 905206

ASSEMBLY

The installation of these mounts and the adjustments of their limit stops once loaded are detailed in an assembly procedure supplied with the mounts.

71

STOPS

There are several types of stops:

• Cylindrical or DIABOLO stops.• Conical progressive stops.• LEVAFLEX progressive stops with central cavity.• EVIDGOM stops.

The design of the PAULSTRA elastic stops gives the following basiccharacteristics:

• Highly deformable allowing high energies to be absorbed.• Progressive absorption of energy due to the carefully designed

shape.

Advantages:• By comparison with rigid stops, PAULSTRA elastic stops are quiet and

avoid hammering and deterioration of equipment.

Recommendations:• The stops must be fitted so that, on impact, the axis of the stop is

perpendicular to the contact surface.• On impact, the external diameter of the stop increases: this must be

allowed for when fixing.

DESCRIPTION

OPERATION

See: Supports andBump stops

Cylindrical stop Conical progressive LEVAFLEX progressive EVIDGOM stopstop stop

72

80

2530407080

M14

1100950600500450

68

101719

33.0038.0030.0042.5043.00

513801511830511840511870511880

4535353535

1 -

60253645

M10400300250

69

11

12.0013.5013.70

511625511635511645

25 1 -

70355070

M10450350300

91214

20.0021.0021.00

511735511750511770

25 1 -

50253545

M10300250190

69

11

9.0011.2010.00

511525511535511545

25 1 -

30

402025354045

M10

160150120120120

568

1011

4.004.504.806.006.60

511450511401511452511454511456

25 1 -

15223040

M8

90807060

3.5689

1.502.402.802.70

511308511310511312511314

25 1 -

10151922253040

M8 20

80605550505050

23.54.55.568

10

0.801.001.201.301.502.002.50

511265511270511251511275511280511285511290

1 -

22 M8 80 6 2.40 511156- 2 6

25.5

ReferenceG(mm)

Ø A(mm)

B(mm)

CCharge

maxi(daN)

Deflect.(mm)

Energy(Joules)

Fig. H(mm)

4.606.00

511157511161

120120

710

3040 M8 20 1 -

304

18181818

---

10152030152030

M6

Repetitive shocks

Deflect.(mm)

1

2

Wght(g)

Deflect.(mm)

Reference

Exceptionalshock

Energy(joules)

Max.staticload(daN)

Reaction(daN)

8.515202530

M6 16.5

4035303025

0.300.700.700.800.80

1.5455.57

511200511215511220511225511230

-

1111222

80605050605550

0.801.001.202.001.001.202.00

23.5583.55.58

----444

15 M6 - 0.704 511154

Fig.

10151015

M4 -1122

202323

0.200.300.200.30

511150511151511152511153

--

2.52.5

H(mm)

DIMENSIONS AND OPERATING CHARACTERISTICS

CYLINDRICAL STOPS

CONICAL PROGRESSIVE STOPS



DIABOLO STOPS

∅ A(mm)

B(mm)

CMax.load(daN)

Deflect(mm)

Energy(Joules)

Reference

12.5

16

20

25.5

1013.51520

10152025

M5

M5

G(mm)

10

12

1

1

121110

8

20201515

22.533.5

0.120.130.160.14

0.200.300.300.30

2345

511110511128511115511125

511292511294511296511298

511158511155511159511160511164511162511163

Ø A(mm)

B(mm)

C G(mm)

Energy(joules)

Reference

25.530305050505050506060727295

202513.52520253525152562253045

1930305050646458584040585880

M8M8M6

M10M8

M10M8

M10M8

M10M14M10M12M16

366

30304040373727275050

120

815152525323228281818262637

100140140340340370370400400550550550550

1100

918189090

120120110110

7070

150150350

Wght(g)

2037308575

150150130120140200290300750

512251512307512301512515512501512516512502512517512503512608512601512700512721512951

Ø A(mm)

B(mm)

C G(mm)

Max.instant.

load(daN)

Deflect.(mm)

2020253035

5757608095

4242576570

M8M8

M10M14M16

100200350800

1000

1012151618

4075

150300400

45.589.59.5

Energy(joules)

126

1520

6080

190500790

511571511572511601511801511951

S(cm²)

59.5

19.538.550

G

CØ A

B

G

C

Ø A

BG

C

Ø A

S (cm²)B

-

-

C

Ø A

H

B

Fig. 1 Fig. 2


73

B(mm)

Ø C(mm)

D(mm)

Reference

6990

106132168

Ø E(mm)

8.58.5

111113

Ø G(mm)

2030404560

H(mm)

5668

10

85110130160200

8.512.5192328

Weight(g)

6001200200030007000

514085514110514130514160514200

A(mm)

85110130160200

LEVAFLEX PROGRESSIVE STOPS

EVIDGOM STOPS

Energy(Joules)

170280330550600650

1050120013002200

Correspondingdeflection

(mm)

40405050656075907085

Reaction(daN)

Exceptionalshock

energy(Joules)

1200170018003400280030004500400060007800

500850

10001500180019003000360039006600

Referencehardness

514085/60514085/75514110/60514110/75514130/60514130/75514160/60514200/60514160/75514200/75

Repetive shocks

Energy(Joules)

31100110180350360400300600

1050250071009500

130001750021000290004100050000

Correspondingdeflection

(mm)

3050456775658570759090

150200130175200250200250

Reaction(daN)

Exceptionalshock

energy(Joules)

190580600750

125014001500

900162523755500

110009500

180001900025000350007000055000

95300330540

105011001200

------------------------

Referencehardness

810644810645810666810642810653810655810669810784810775810776

810733/60810732/60810731/60810732/75810731/75810735/60810734/60810735/75810734/75

Repetive shocks

Stopreference

810642810644810645810653810655810666810669810731810732810733840734810735810775810776810784

810022810004810035810023810025810046810029

----------

810015810016810014

Fig.

112112233333111

B(mm)

C Ø C1(mm)

Ø C2(mm)

Ø D(mm)

Ø Aunder load

(mm)

11472

100140142

98155360380370445500202256168

1205593

130132

90150400315230500395150180140

M16M10M16M16M16M16M16

6 X M246 X M246 X M248 X M248 X M24

M16M24M16

All rubberEvidgomreference

Ø A(mm)

855566

100110

76110250250250350350155188125

201420202020207070708585254030

301414303014307070708585403025

--------------

150150150196196------

NOTE: The values are given for test conditions with an impact speed of 1 m/s. Consult us for speeds that are much higher.


Fig. 3

Ø A

C

Ø D

Ø C 1

B

Ø C 2

D

A

DH

BA

Ø E

Ø C

Ø G

Fig. 2Fig. 1

B B

Ø AØ A

Ø C 2Ø C 2

CC


74

DEFLECTION CURVES AND ENERGY VALUES FOR PROGRESSIVE,LEVAFLEX AND EVIDGOM STOPS

76

SUPPORTSANDBUMP STOPS


Reference: 514202 - Hardness: 75 - Compressiveload: 5000 daN - Deflection: 8 mm

Reference: 534501 - Hardness: 60 - Load:Compression: 2500 daN - Deflection: 15 mm -Shear load: 300 daN - Deflection: 10 mm

Reference: 817505 - Hardness 60 - Compressiveload: 1500 daN - Deflection: 5 mm

Reference: 813501 - Hardness: 60 - Compressiveload: 1000 daN - Deflection: 4 mm

Reference: 813504 - Hardness 60 - Compressive load:3000 daN - Deflection: 9 mm

Reference: 817605 - Hardness 60 - Compressiveload: 2000 daN - Deflection: 1.4 mm

Reference: 813506 - Hardness 60 - Compressiveload: 4000 daN - Deflection: 2.4 mm

77


Deflection: 14 mmMaximum load: 150 daNReference 512389



M 8M 12

170

200

Ø 14.5

120

160

200

220

160

190

70

3817

47 9436

102

60

10

78

Reference Fig. A(mm)

B(mm)

Ø C(mm)

D(mm)

E(mm)

H(mm)

Deflectionunder load

(mm)

Loadmaxi

(KN)

Ø d(mm)

E1V-3245-04*E1V-3568-01*E1V-3892-01*E1V-3914-01*E1V-3921-01*E1V-3922-01*E1V-3927-01*E1V-3931-01*E1V-3932-01*E1V-3940-01*E1V-4031-01*E1V-4059-11*

519805519830

43211212111112

135126196170170180170110170170170234170100

125

140110110180110110110

88110125110110

10680

174140140148140

92140140140200140

80

85

118

148

92

90

53533633333533

11036854050564090302065705062

--104025313225--

15.51041403125

50592520286028.52650302551.22812.5

M105/16 or M8

13151515159

151515141511

See also stopsrange (p71)

KN

mm

Distortionunder load

Advantages:- sliding plate.- integrated stop.- progressive stiffness.

curve exampleLoadmaxi

Fig. 4Fig. 3Fig. 2Fig. 1

79

NIVOFIX®

The NIVOFIX mount is an adjustable equipment foot comprising acircular disc bonded to a protected elastomer base. An adjustementscrew permits the levelling.

The elastomer base has anti-slip ridges.

The design of the NIVOFIX mount gives the following basiccharacteristics:

• Accurate adjustment of the mount to correct the equipment’sseating (adjustment screw, correction of altitude).

• Absorbs high frequency vibrations.• Corrosion resistant (nitrile elastomer, protective shroud, galvanised

metallic parts).• Anti-slip sole (no need to fix).

Advantages:• Speed of fixing.• Simple removal of the equipment.• No shimming.

DESCRIPTION

OPERATION

See Vibrachocmetallic range:

V43 - V44 - V45 - V46

80

Studlenght

(mm)

128150173195215

DIMENSIONS


APPLICATIONS


ReferenceStainless

steel

ReferenceSteel

Ø A(mm) B max. = B min. + adjustment

B (mm)C

min. max.

G (mm) Weight(g)

530815530825530835

--

530810530820530830530840530850

6588

133200260

31.546587083

26.533465865

513121218

M12M16M20M24M24

105114130145158

110127142157176

280690

18205250

10000

Reference

530810530815530820530825

Nominalstatic load

min. - max. (daN)

100 - 600100 - 600

325 - 1300325 - 1300

Deflection(mm)

1 - 3.51 - 3.52 - 42 - 4

Reference

530830530835530840530850

Nominalstatic load

min. - max. (daN)

Deflection(mm)

2 - 42 - 4

1.5 - 32 - 4

650 - 2600650 - 2600

1500 - 60003000 - 12000

NIVOFIX mounts are used for all equipment requiring height adjustment.

Equipment already using NIVOFIX mounts:

• Vertical mill • Plane • Packaging machine• Mortiser • Horizontal mill • Test equipment• Multichuck drill • Lathe • Printing press• Sheet metal bender • Office equipment • Gear cutter• Polisher - accounting • Textile machinery• Press - computing

C

G m

ax.

G m

in.

B m

ax.

B m

in.

Ø A

81

MINIFIX

The MINIFIX mount comprises an elastomer pad with an anti-slipridged surface and a threaded stud allowing accurate heightadjustment of equipment.Made in two hardnesses (50 and 80 Sh) the MINIFIX mount is perfectlysuited to a variety of applications and is delivered complete with fixingnuts and washers. MINIFIX mounting nuts and screws are made of steelor stainless steel.

Simple and economic, MINIFIX mountings are particularly suitable forthe installation of equipment such as:

• Electrical or electronic enclosures.• Packaging equipment.• Test and measuring equipment.• Equipment for the food industry.• Laboratory equipment.• Household appliances.

DESCRIPTION

APPLICATIONS

Hardness ColourReferenceStainl. steel

ReferenceSteel

Load range(daN)

- 530801 50 SBR80 Nitrile

greyblack

Ø A(mm)

32

B(mm)

15

C(mm)

38

D

M8stud

5 - 3015 - 70

- 530802* 50 SBR80 Nitrile

greyblack 46 15 - M10

nut10 - 80

25 - 200

530806 530805 50 SBR80 Nitrile

greyblack 46 15 38 M10

stud10 - 40

25 - 100

- 530807 50 SBR80 Nitrile

greyblack 70 25.5 55.5 M12

stud50 - 120

100 - 350

CHARACTERISTICS

* Threaded centre hole.See current price list for availability of items.

D

Ø A

BC

82

TRAXIFLEX

The TRAXIFLEX mount comprises two metallic U armatures joined bytwo bonded rubber blocks.It is available in two versions: male/female and female/female.

The design of the TRAXIFLEX mount gives the following basiccharacteristics:

• Rubber works in compression-shear.• The same deflection under nominal load for all types.• Safety system in case of elastomer failure.

Advantages:• Economic solution for suppressing structure borne noise.• Several fixing methods.• High resistance to atmospheric exposure:

- galvanised armatures- chloroprene elastomer.

• Upper metallic part is shaped to simplify orientation while fixing.• Two hardnesses of elastomer to extend the choice of mounting as a

function of load.• Filtration of vibration and the attenuation of the consequent noise.• Allows movement due to thermal expansion.


DESCRIPTION

OPERATION


See Vibrachocmetallic range:VE101 - VE111VE112 - VE113

83

Reference

2 nuts

--------

535621535621535622535622

Deflection(mm) Hardness1 screw -

1 nut

DIMENSIONS


ASSEMBLY

Recommendedload(daN)

4-184-187-307-30

10-5220-8020-92

30-136

444444444

535600535603535600

53560361*535611535611535612535612

4545606045604560

When fixing, ensure that all the TRAXIFLEX mounts are supporting the same load. It isnecessary to ensure that they are all the same distance from the fixing surface (ceiling, girder,plank...).TRAXIFLEX mounts can be used to suspend pipework: the whole assembly being fixed to theceiling.

• Suspending hot air ducts.• Suspending a fan unit and distribution ducts.• Suspending a hot air generator with continuous airflow.• Suspending an integral cased air conditioner.

TRAXIFLEX mounts have been subjected to acoustic trials at the Centre Expérimental de Recherches etd'Études du Bâtiment et des Travaux Publics which has given the P.V nr. 554.6.078.* Elastomer resistant to fire M1.


* Elastomer resistant to fire M1.

Type

TR 12-30TR 12-30TR 12-30TR 40-80

TR 100-250

------

535621535622

53560053560361*535603535611535612

Reference1 screw - 1 nut 2 nuts

Hard-ness

A(mm)

B(mm)

C G(mm)

H(mm)

45-606045

45-6045-60

4747475574

3838384750

M7 x 1.50M6 x 1.00M6 x 1.00M8 x 1.25

M12 x 1.75

1616163040

717171317

B

H

C

A G

84

A flexible fixing resistant to oils, the majority of solvents and ageing.

FLEX-LOC

The design of the FLEX-LOC mount gives the following basiccharacteristics:

• The rubber works in:- compression (axial),- shear (radial),- compression/shear according to the fixing method.

Advantages:• 80% reduction of vibrational energy transmitted from normal

structural frequencies.• Simple and economical.• Simple to fix.• Light weight.

DESCRIPTION

OPERATION

APPLICATIONS

FLEX-LOC are suitable for the fixing of sheets, frameworks, engines,ventilators, electronic equipment, computers, etc.They have, moreover, a function of insulation against the structureborne noises, unlike other fasteners.

85

Nut

Q3Q4Q5Q6Q8

Barry Controlsreference *

Paulstrareference

530909 03530909 04530909 05530909 06530909 07

ClearanceholeØ B(mm)

Platethickness G

(mm)

7.2-7.59.3-9.6

10.2-10.512.7-13.016.5-16.8

0.6-2.50.8-3.30.8-4.31.5-5.01.5-6.5

I(N.m)

II or III(N.m)

Torque range

Compression/shear

Compression

Static load (daN)

Shear

II or IIII

0.50.61.03.54.0

0.40.50.60.91.8

111.535

57

101428

2.53.557

14

Q3

Q4

Q5

Q6

Q8

BarryControls

reference *

Paulstrareference

530909 03530909 04530909 05530909 06530909 07



M3M4M5M6M8

912151824

Ø A(mm)

7.29.3

10.212.716.5

Ø B(mm)

3.44.45.46.48.4

Ø C(mm)

911.514.51722

D(mm)

2.533.545

E(mm)

810.5131519.5

F(mm)

* Barry Controls references are given as an indication.

* Barry Controls part numbers are given for reference only.

F

Ø C

Ø B

D

E

Ø A

Ø B

G

I II III

86

These all elastomer parts are compatible with the majority of theindustrial environ-ments and have an operating temperature range of -40°C to + 83°C.

RINGS AND BUSHINGS

A ring assembled with the associated bushing constitutes a flexibleinterface and a simple solution to decrease noise and vibrations.

• These supports can be installed in parallel for a greater load capacityand may also be stacked in series when greater deflection capacityis required.

• Bushings can be used in pairs, bushing end to bushing end, without rings for a more robust installation or where the structure thickness does not allow for a standard ring and bushing assembly.

Advantages:• Highly efficient noise reduction. • Absorb schock and vibrations.• Simple and economic.• Four models in four stifnesses for load capacities going from 0.5 to

160 kg per isolator.

DESCRIPTION

OPERATION

APPLICATIONS

• Office machines, motors, fans, HVAC equipment, electronics equip-ment, telecommunication equipment; etc.



(1)

87


A A

A

Ø 31,820,6

Ø 15,9

Ø 55,6

Ø 35

3,3

A

A

Ø 76,2

Ø 31,8

11,9

21,5 10,5

5,6

45,2

Ø 7

3

Ø 1

5,9

2

2

Ø 1

1,5

Ø 2

0,6

6,4

2

2

Ø 2

0,6

14,3

6,6

Ø 1

1,9

Ø 6

,4

2,4

2,4

8,4

16,7

Ø 1

7,5

Ø 9

,5

Ø 3

4,9

Ø 1

9

Ø 3

4,9

2,4

2,4

7,7

4

4

12,7

Ø 3

1,8

Ø 4

8,4

2,49,5

22,2

Ø 1

7,5

Ø 1

4,2

Ø 4

8,4

Rings Bushings

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Section A - A

Section A - A

88

Load range

Max. (daN)Min. (daN)Max. (daN)

Load range

530907 33 / 530908 33WR3-030 / WB3-030

Min. (daN)

530907 13 / 530908 13WR1-030 / WB1-030

0.4 1.8

530907 14 / 530908 14WR1-040 / WB1-040

0.9 2.7

530907 15 / 530908 15WR1-050 / WB1-050

1.4 3.6

530907 16 / 530908 16WR1-060 / WB1-060

2.3 5.4

4.7

9

13.6

18

27

50

61

73

16

23

27

74

55

73

114

159

530907 34 / 530908 34WR3-040 / WB3-040

530907 35 / 530908 35WR3-050 / WB3-050

530907 36 / 530908 36WR3-060 / WB3-060

530907 43 / 530908 43WR4-030 / WB4-030

530907 44 / 53090844WR4-040 / WB4-040

530907 45 / 530908 45WR4-050 / WB4-050

530907 46 / 530908 46WR4-060 / WB4-060

530907 63 / 530908 63WR6-030 / WB6-030

530907 64 / 530908 64WR6-040 / WB6-040

530907 65 / 530908 65WR6-050 / WB6-050

530907 66 / 530908 66WR6-060 / WB6-060

2.7 9

3.2 10.5

4.5 11.4

6.8 16

FigColour

1blue

brown

black

grey

blue

brown

black

grey

Colour

blue

brown

black

grey

blue

brown

black

grey

1

1

1

3

3

3

3

Fig

2

2

2

2

4

4

4

4

* Barry Controls part numbers are given as a reference only

Dimensions (mm)

A B 530907 1* - 5,8

530908 1* 5,8 -530907 2* - 7,6

530908 2* 7,6 -530907 3* - 11,4

530908 3* 8,4 -530907 4* - 19,1

530908 4* 31,75 73

GroupPaulstra reference

Barry Controls reference *

GroupPaulstra reference

Barry Controls reference *

Equipement

W Series Bushing

W Series Bushing

Equipement

Support

Support

W Series Bushing

W Series RingWasher

Washer

Spacer Nut

Bolt

Nut

Bolt

Spacer


ASSEMBLY

89

Stiffness (1)(2) (N/mm)Tolerance: ± 10%

Characteristics

1.21.41.61.82.02.43.03.3

0.40.470.530.60.670.811.1

36404550556575

100

192025

Tolerance: ± 15%

E: Elast. modul.(MPa)

G: Shear modul.(MPa)

ELASTOMERMOULDED PARTS

These parts are usually supplied in VHDS (very high density silicone)rubber and the full reference should include:

- the letter S,- the appropriate grade which corresponds:• to the youngs modulus of the rubber under static compression in

accordance with ASTM D945 (ref. 33 to 77),• or to the stiffness measured on a part (ref. 16 to 25).

These standard VIBRACHOC grades are shown in the following table:

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

(1) measured on standardised Ø 19 - h 12.7 mm high part.(2) linear region between 1 to 3 mm compression.

Example: E3RP0754S55 flat washer internal diameter 7, external diameter 30, height 6, inVHDS silicone, young modulus 2 MPa; washer colour: brick red.

Other elastomers may be used: natural rubber, neoprene, EPDM, butyl rubber, nitrile rubber.

Reference

162025

3338424855637277

light bluegrey

browndark greenbrick redorange

light greenultramarine blue

yellowdark blue

black

Colour

90

DIMENSIONS


FLAT WASHERS

Reference

E3RP2439E3RP3419E3RP2062E3RP3291E3RP2061E3RP2667E3RP2025E3RP2024E3RP2401E3RP2282E3RP2281E3RP2959E3RP2453E3RP2403E3RP3534E3RP2402E3RP3162E3RP2882E3RP0590E3RP2883E3RP0591E3RP2404E3RP0754E3RP2148E3RP2149E3RP2454E3RP2406E3RP2405E3RP0607E3RP0608E3RP0588E3RP0777E3RP2436E3RP0609E3RP2045

2244455566.16.16.46.56.56.56.56.57777777.47.67.7888888888.5

6789

121215221812201211.813.515182512121616303011.517.611.8131618182224262626

10153.4454466432.5

104.5

14.524668367.567.74468446

104

Ø Int.(mm)

Ø Ext.(mm)

e(mm)

Reference

E3RP2604E3RP2605E3RP2330E3RP2181E3RP2570E3RP2446E3RP3500E3RP0613E3RP2346E3RP2437E3RP0584E3RP2345E3RP2645E3RP0614E3RP0615E3RP2435E3RP0644E3RP0585E3RP0643E3RP0586E3RP2329E3RP2328E3RP0694E3RP0695E3RP0738E3RP2407E3RP3222E3RP2408E3RP2409E3RP3532E3RP0782E3RP2434E3RP0744E3RP0745E3RP2341

9999.59.59.5

1010101010101010101010101010111112121214141620202122313644.5

1319362024261820212222242526263030343434363617185022302932382938364483

44664446646646

126

1268

124644

126.537

10.535

17333.2

Ø Int.(mm)

Ø Ext.(mm)

e(mm)

Ø Ext.

Ø Int.

e

91

DIMENSIONS


FLANGED WASHERS

GROMMETS

THREADED STUDS

Reference

E3RP0712E3RP2292E3RP3290E3RP0647E3RP0997E3RP2192E3RP2410E3RP3533E3RP0755E3RP2374E3RP2379E3RP0563E3RP2173E3RP0778E3RP2042E3RP3491E3RP3490E3RP0553E3RP0575E3RP2315

Ø d(mm)

Ø D1(mm)

Ø D2(mm)

H(mm)

h1(mm)

h2(mm)

3.53.544.25666.57888888.59.5

10111216

1013

98

1812181530181819.82124262418245050

7.5665.8

108.5

101117121313.81314171814172828

4.775.43.3

247

108

1463.57688889

2222

3.23.33.41.7

14464.56322444444

1212

1.53.721.6

10343.5831.55244445

1010

Ø D1

Ø D2

Ø dh2

H

h1

Reference

E3RP2364E3RP0648E3RP0576E3RP3295E3RP3258

Ø D1(mm)

Ø D2(mm)

Ø D3(mm)

A1(mm)

A2(mm)

B(mm)

44.2588

65.88

1212

88

121818

2.21.725.55.5

2.21.725.55.5

1.61.6436

Ø D1

Ø D3

Ø D2

A2

A1

B

Reference

E3RP0953E3RP0956E3RP2118E3RP0757E3RP0954E3RP0708E3RP0686

Ø D(mm)

10121620333333.2

H(mm)

88

1623263953.5

L(mm)

668/9.5

1213.213.212

M

M3M3M5M5M6M6M6

M

H

Ø D

L L

92

ELASTOMERPLATESE3PEPL

VHDS elastomer sheet.

These sheets may be used for making grommets, washers or anti-vibration mountings for equipment.There is a wide range of VIBRACHOC moulded parts, but in certaincases, such as prototypes, undefined specification, etc, it is oftenadvantageous to determine the suspension using elastomer compo-nents cut from sheet and bonded.

• Overall tolerances:- on the lengths: ± 5%- on the thickness: ± 3%

VIBRACHOC plates should be ordered using the following reference:E3PEPL ❏ ❏ S ❏ ❏ C ❏ ❏ ❏

1 2 3

1: dimension in cm.2: grade page 89.3: thickness in 1/10 mm.

For example: E3PEPL30S55C060 =• square plate 300 X 300 mm.• 6 mm thick VHDS rubber compound.• grade 55.

For other shapes, sizes or materials, ask us for details.

SHAPE DIMENSIONS(mm)

THICKNESS(mm)

SQUARE 300 X 300 2, 3, 4, 5, 6, 8, 10

DESCRIPTION

APPLICATIONS

CHARACTERISTICS


}}}

93

SUSPENSION OFDISC DRIVESE4330F**

A silicone (VHDS) elastomer with a bonded metal insert. The legs have tangs which enableeach leg to be pulled through mounting holes in the equipment. The suspended component canthen be attached with an M3 screw through the insert. The tangs can be cut off after insertion.

• Suspension of disc drives.• Protection of electronic components and printed circuit boards with very low mass in mobile

or static environments.

Natural Frequency : • Axial : 15 to 30 Hz• Radial : 15 to 30 Hz.Amplification factor at resonance < 5.Operating temperature range : -50°C to +150°C.

DESCRIPTION

APPLICATION

CHARACTERISTICS

SILCONE/SPECIAL ELECTRONICS

Reference Nominal load(daN)

E4330F01E4330F11E4330F21E4330F31E4330F71

0.030.0350.0360.0420.1


Natural Frequency : 20 to 30 Hz

(1)

1.6

Ø 33

6.5

20

1.6 max

Disc drive

Two through holes

Ø 3.1 +0.10

M3 screw not provided

Mounting in compression Mounting in shear

Fixing arrangement

Possible installation configurations.

94

S.L.F.MOUNTS

SILICONE RUBBER / SPECIAL ELECTRONICSNatural frequency:

10 to 25 Hz

Low frequency high deflection antivibration mount available in a choice of elastomers includinghigh damped silicone. The zinc plated mild steel metalwork is fully bonded for improved fatiguestrength.

These mounts have been designed to protect low mass components and instruments fromvibration and shock and to isolate small rotating machines e.g. pumps and electric motors.

Maximum sinusoidal input at resonance: ± 0.5 mm.Resonance frequencies at maximum input: 10 to 25 Hz dependent on axis and load.Axial to radial stiffness: 3 : 1.Amplification at resonance: silicone : 4 natural rubber : 10.Maximum displacement during shock: axial: 5 mm.

radial: 7 mm.Mechanical strength corresponding to a continuous acceleration of 10 g at maximum load.

DESCRIPTION

APPLICATIONS

DIMENSIONS

SMALL LOADSHIGH DEFLECTION


Improved stability can be achieved if the mounts are inclined at 45° towards the centre ofgravity.

ASSEMBLY

Roll

M 4 x 0.7

Max depth of thd from face: 5.0 Compression Weight: 6 g approx.

Ø 1

4.0

8.75

17.5 8.5

12.5

M 4

x 0

.7th

d

10

Shear

555507

NB: The * define the type of fixing: combination fixing: 555007 male/male fixing: 555005 female/female fixing: 555006

Reference

- 40 to + 70°C

- 54 to + 150°C

0.10 - 0.400.40 - 0.80

0.10 - 0.150.15 - 0.30

0.10 - 0.500.50 - 1.00

0.10 - 0.250.25 - 0.50

0.10 - 1.501.50 - 3.00

0.10 - 0.500.60 - 0.80

Temperature forcontinuous operation

Static loadin shear

(daN)

Static loadin roll(daN)

Static loadin compression

(daN)

55500*4255500*72

55500*0155500*02

Mix

Silicone 42 ShSilicone 70 Sh

NR 50 ShNR 70 SH

95

0,8 - 2

E1E931SE1E4045

Natural frequency: • axial :15 to 25 Hz.• radial : 10 to 20 Hz.Maximum sinusoidal input amplitude at resonance frequency : ± 0,4 mm.Amplification factor at resonance < 4.Operating temperature range : - 54 °C to + 150 °C.Mechanical strength corresponding to a continuous acceleration of 10 g at maximum load.Maximum axial displacement during shock : 3 mmWeight : E1E931S : 31 g.

Part Number Axial static load (daN)


- High damped silicon elastomer (VHDS).- Stainless Steel flange and centre axis.

- Protection of electronic equipment, navigation equipment, control consoles, measuring instruments,onboard aircraft, trains and trucks.

DESCRIPTION

APPLICATION

Natural frequency: 10 to 25Hz

(1)

E1E931S38E1E404538

E1E931S55E1E404555

E1E931S72E1E404572

1- 2,5

1,5 - 4

CHARACTERISTICS

96


(1) Natural frequency with max. load, see chapter: CHARACTERISTICS.

A

B

A

B

CC

H H

Ø d x 10 usable

2 x Ø D

h un

der

load

e e

2 x Ø D

Ø D

E1E931S E1E4045

B(mm)

Ø C(mm)

44 30

Référence A(mm)

E1E931S ❑❑ 34,9

E1E4045 ❑❑ 35,9 3044

D

4,2

4,2

H(mm)

24,5

20

Ø d(mm)

M5

5,1

e(mm)

2,5

2

h(mm)

12,5

11

h under load

97

E1E11S**E*E1E12S**E*E1E13S**E*

• VHDS elastomer able to carry loads under compression and traction.• Pedestal, washer and shaft in 18/8 stainless steel.

• Protecting electronic equipment, navigation equipment, instrument panels, measuringinstruments, control panels on aircraft, road vehicles and railway trains.

Natural frequency:• axial: 20 to 25 Hz• radial: 20 to 25 Hz.Maximum permitted excitation at natural frequency ofsuspension: ± 0.5 mm.Amplification factor at resonance < 5.Operating temperature: - 54°C to + 150°C.Structural strength corresponds to a continuous accelerationof 10 g at maximum load.Maximum axial travel available for shock:E1E11: + 4mm / E1E12: + 5 mm / E1E13: + 7 mm.Weight: E1E1: 60 g / E1E12: 120 g / E1E13: 225 g.These mounts meet the standard AIR7304 curve ZF

DESCRIPTION

APPLICATIONS

CHARACTERISTICS


Reference Axial static loads(daN)

E1E11S38ECE1E11S42ECE1E11S48ECE1E11S55ECE1E11S63ECE1E11S72EC

1.60 - 2.801.80 - 3.202.10 - 3.802.50 - 4.503.00 - 5.303.50 - 6.20

E1E12S38EDE1E12S42EDE1E12S48EDE1E12S55EDE1E12S63EDE1E12S72ED

3.70 - 5.704.00 - 6.304.60 - 7.105.20 - 8.106.00 - 9.30

6.60 - 10.30E1E13S38EEE1E13S42EEE1E13S48EEE1E13S55EEE1E13S63EEE1E13S72EE

5.50 - 8.506.00 - 9.50

6.50 - 10.507.50 - 12.008.50 - 14.00

10.00 - 16.00

4 mountingholes Ø d

J

A

B

Ø C

Ø E

Hunloadedapproxh approx.underload

A B

Gusable

1 tapped hole

for screw D

Reference A(mm)

B(mm)

Ø C(mm)

D Ø E(mm)

H(mm)

J(mm)

Ø d(mm)

h(mm)

G(mm)

E1E11S ❑❑ EC 25.4 34 28.5 M5 23 29 14 4.3 28 10

E1E12S ❑❑ ED 34.9 44.4 40 M6 34.6 35.6 19 4.3 34.5 12

E1E13S ❑❑ EE 49.2 60.5 57 M8 45 47 23 5.3 45.5 16

Natural frequency: 20 to 25 Hz

(1)


98

E1E11S**ALE1E12S**ALE1E13S**AL

• VHDS elastomer able to carry loads under compression and traction.• Flange, washer and shaft in 18/8 stainless steel.


Natural frequency:• axial: 20 to 25 Hz• radial: 20 to 25 Hz.Maximum permitted excitation at natural frequency ofsuspension: ± 0.5 mm.Amplification factor at resonance < 5.Operating temperature: - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tion of 10 g at maximum load.Maximum axial travel available for shocks:E1E11: + 4mm / E1E12: + 5 mm / E1E13: + 7 mm.Weight: E1E11: 25 g / E1E12: 75 g / E1E13: 225 g.These mounts meet the standard AIR7304 curve ZF

DESCRIPTION

APPLICATIONS

CHARACTERISTICS



E1E11S38ALE1E11S42ALE1E11S48ALE1E11S55ALE1E11S63ALE1E11S72AL

1.60 - 2-801.80 - 3.202.10 - 3.802.50 - 4.503.00 - 5.303.50 - 6.20

E1E12S38ALE1E12S42ALE1E12S48ALE1E12S55ALE1E12S63ALE1E12S72AL

3.70 - 5.704.00 - 6.304.60 - 7.105.20 - 8.106.00 - 9.30

6.60 - 10.30E1E13S38ALE1E13S42ALE1E13S48ALE1E13S55ALE1E13S63ALE1E13S72AL

5.50 - 8.506.00 - 9.50

6.50 - 10.507.50 - 12.008.50 - 14.00

10.00 - 16.00

1 mounting holeD

Ø F

B

Ø C H unloadedapprox.

h under loadapprox.

e

A

G usable

4 mounting holesfor screw Ø d

A B

Reference A(mm)

B(mm)

Ø C(mm)

Ø F(mm)

G(mm)

Ø d(mm)

e(mm)

H(mm)

h(mm)

Ø D(mm)

E1E11S ❑❑ AL 25.4 32 23 25.6 19 3.6 1.5 10 9 5.2

E1E12S ❑❑ AL 34.9 44.5 34.6 38.7 25.4 4.2 1.8 11.5 10.5 6.7

E1E13S ❑❑ AL 49.2 80.5 45 53 38 5.3 2.5 17.75 16.5 8.3


(1)


99

E1E21E1E22E1E23

• VHDS elastomer.• Flange and shaft in 18/8 stainless steel.Two Ø C fail safe rings must be provided.


Natural frequency:• axial: 15 to 25 Hz• radial: 20 to 35 Hz.Maximum permitted excitation at natural frequency ofsuspension: ± 0.5 mm.Amplification factor at resonance < 4.Operating temperature: - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tionof 10 g at maximum load.Maximum axial travel available for shock:E1E21: ± 4 mm for f min / E1E22: ± 4.5 mm for f min

± 6 mm for f max ± 6 mm for f max.Weight: E1E21: 9 g / E1E22: 25 g / E1E23: 63 g.These mounts meet the standard AIR7304 curve ZF

DESCRIPTION

APPLICATIONS

CHARACTERISTICS


1 hole for screw D

A

LOAD

B

e

A

Ø C minrecommend.

4 holesØ d

B

E

ReferenceA

(mm)B

(mm)Ø C(mm)

DE

(mm)Ø d

(mm)e

(mm)H

(mm)h

(mm)

E1E21S ❑❑ AL 25.4 32 24 M4 19 3 0.8 12.5 11

E1E22S ❑❑ AL 34.9 44.5 28 M5 25.4 4 1.5 16.5 15

E1E23S ❑❑ AL 49.2 60.5 42 M6 36 5 2 22 20


(1)


Référence Axial static loads(daN)

Frequency(Hz)

E1E21S38ALE1E21S63ALE1E21S77AL

0,10 -0,400,20 - 0,900,26 - 1,20

15 - 25


0,20 - 1,000,40 - 1,700,50 - 2,20

12 - 25

E1E23S42ALE1E23S77AL

0,40 - 1,201,00 - 2,90

10 - 15

H ± unloadedmaxh under loadapprox.

* Exist with a diamond flange (B4)

100

E1E31E1E32

• VHDS elastomer.• Flange and shaft in 18/8 stainless steel.Two Ø K fail safe rings must be provided.


Natural frequency:• axial: 15 to 25 Hz• radial: 20 to 35 Hz.Maximum permitted excitation at natural frequency ofsuspension: ± 0.5 mm.Amplification factor at resonance < 4.Operating temperature: - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tion of 10 g with maximum load.Maximum axial travel available for shocks:E1E 31: ± 4 mm for f min

± 6 mm for f max.E1E 32: ± 4.5 mm for f min

± 6 mm for f max.Weight: E1E31: 9 g / E1E32: 25 g.These mounts meet the standard AIR7304 curve ZF

DESCRIPTION

APPLICATIONS

CHARACTERISTICS


Reference A(mm)

B(mm)

E1E31S ❑❑ AL 25.4 32

E1E32S ❑❑ AL 34.9 44.5

Ø C(mm)

25

35

D

M4

M5

Ø E(mm)

8.5

13

F(mm)

10.5

14.5

J(mm)

2

3

Ø K(mm)

Ø d(mm)

25 3.6 3.2 5 4.5 0

35 4.3

e(mm)

1

1.5 4.5 7 6.2 0

H(mm)

1.75

2.5

h(mm)

3.5

5

Min Max

f (mm)

Min Max

j (mm)


Frequency(Hz)

Radial static loads(daN)

Frequency(Hz)


0.20-0.700.30-1.000.50-1.70 15-20

0.20-0.400.30-0.500.50-0.90 20-25


0.30-1.100.60-1.800.80-2.60

0.30-0.700.60-1.100.80-1.60

Ø E1 mounting hole

for screw D

1 Ring Ø K(or device) f

e


A

A

H unloadedapprox.h under loadapprox. Ø C

Ring Ø K minrecommended

F

j

i


(1)


B

B

101

E1E41E1E42E1E43

• VHDS elastomer able to carry loads under compression.• Base and centre axis in 18/8 stainless steel.


Natural frequency:• axial and radial: 10 to 25 Hz.Maximum permitted excitation at natural frequency ofsuspension: ± 0.5 mm.Amplification factor at resonance < 4.Operating temperature: - 54°C to + 150°C.Structural strength corresponds to a continuousacceleration of 10 g at maximum load.Maximum axial travel available for shocks:E1E41: 8.8 mm / E1E42, E1E43: 12 mm.Weight: E1E41: 22 g / E1E42: 60 g / E1E43: 96 g.These mounts meet the standard AIR7304 curve ZF

DESCRIPTION

APPLICATIONS

CHARACTERISTICS


Reference A(mm)

E1E41S ❑❑ EB 25.4

E1E42S ❑❑ EC 34.9

E1E43S ❑❑ ED 49.2

B(mm)

34 30.5

41.5

57

43

60.5

Ø C(mm)

D

M4

M5

M6

Ø E(mm)

10

12

21.5

G(mm)

6

8

8

H(mm)

23

33

33

N(mm)

14.2

20

20

Ø d(mm)

4.3

4.3

5.3

e(mm)

0.8

1.5

2

f(mm)

14

18

16

h(mm)

21

31

31

①


E1E41S38EBE1E41S63EBE1E41S77EB

1.20-2.102.00-3.803.00-5.20

E1E42S38ECE1E42S63ECE1E42S77EC

1.75-3.303.20-5.904.40-8.30

E1E43S38EDE1E43S63EDE1E43S77ED

3.10-5.505.40-10.807.50-13.60

① These isolators exist with an oval flange (FB).

Ø E1 tapped holefor screw D

f

e

B


A

A

H unload. approx.h under loadapprox

Ø C

Ø C

B

N

G usable


(1)


102

① 5 - 14

E1E941S

Natural frequency: • axial and radial : 12 to 30 Hz.Maximum sinusoidal input amplitude at resonancefrequency : ± 0,5 mm.Amplification factor at resonance < 5.Operating temperature range : - 54 °C to + 150 °C.Mechanical strength corresponding to a continuousacceleration of 10 g at maximum load.Maximum axial displacement during shock :E1E941S : 4 mm.Weight : E1E941S : 80 g.These mounts meet the standard AIR7304 curve ZF

Reference Axial static loads (daN)


- High damped silicon elastomer (VHDS).- Stainless Steel flange and centre axis.

- Protection of electronic equipment, navigation equipment, control consoles, mesuringinstruments, onboard aircraft, trains and trucks.

DESCRIPTION

APPLICATION

CHARACTERISTICS

① Oval centre flange available.


(1)

E1E941S38

E1E941S55

E1E941S72

7- 20

12 - 30

B(mm)

Ø C(mm)

44,5 38

Reference A(mm)

E1E941S ❑❑ EB 34,9

Ø D(mm)

6,7

H(mm)

26,2

Ø d(mm)

4,3

e(mm)

3

h(mm)

12

103

ARDAMP®

The ARDAMP series dampers have a spring and piston embedded inhigh viscosity silicone rubber gel which itself is embedded in anelastomer membrane bonded to the case.

Due to their high performances and high shock damping capacityARDAMP dampers are designed to protect fragile electronicequipment, control panels and measuring instruments on groundvehicles, aircrafts, helicopters, civil and military submersible crafts.

(1) Natural frequency with max. load, see chapter: OPERATING CHARACTERISTICS.

DESCRIPTION

APPLICATIONS


104

DIMENSIONS

ARDAMP

S01E1FH781

C01

E1FH76E1FH77E1FH78

E1FH866C01E1FH2507-01

1 tapped hole

1 tapped hole

Ø C

G usable

G usable

He

e

4 mounting holesØ d 4 mounting holes

Ø d

4 mounting holesØ d

1 tapped hole

Ø C

G usable

H

J

H

AA

A

B

B

B

eh

J

B

B

A

A

J

B

A

Ø C

Ø A(mm)

ReferenceH

Unload.(mm)

H approx.under load

(mm)

B(mm)

C(mm)

D E(mm)

Gmaxi

(mm)

J(mm)

Ø d(mm)

e(mm)

h(mm)

Weightapprox.

E1FH781S01E1FH781C01

4243

3941

35 54 43 M5 10 12 4.5 5.5 120 g

E1FH866C01E1FH2507-01

47 46 49.2 65.3 61.5 M6 15 12 5.2 5230 g215 g

E1FH76-01E1FH76-02

7067

6665

63.5 77 70 M10 30 19 24 8.4 7.2 49 390 g

E1FH77-01 86 82 88 110.5 96 M12 40 24 34 8.4 8.5 62 930 g

E1FH78-01E1FH78-02

10298

9995

107.9 132 117 M16 54 25 44 11 9.5 77.5 1.5 kg

Ø EØ D

Ø D

Ø D

105


ARDAMP

Natural frequency:• axial: 10 to 25 Hz• radial: 10 to 20 Hz.

Damping: 20% c/cc (E1FH781, 866, 2507-01).17% c/cc (E1FH76, 77, 78).

Amplification factor at resonance: 2.5 to 3 max.These dampers comply with SEFT 001A, AIR 7304, MIL STD 810 C.

SEFT 001 A AIR 7304MIL

STD 810 CNon standardapplications

Shocks andbumpsOZ axis

Reference

Loadby

damper

(daN)

AxialFn

(Hz)

RadialFn

(Hz)

Loadby

damper

(daN)

AxialFn

(Hz)

RadialFn

(Hz)

Loadby

damper

(daN)

AxialFn

(Hz)

Loadby

damper

(daN)

RadialFn

(Hz)

6 ms½ sinusshocks

maxinput

(g)

11 ms½ sinusshocks

maxinput

(g)

E1FH781S01E1FH781C01

0.2-22-5

20-25 15-204 16

1.5-3.53.5-8

10-20 70 g 38 g

E1FH866C01E1FH2507-01

8-15-

10-20-

12-20-

6-8-

20-25-

15-20-

8-

20-

8-155-8

10-206-10

50 g-

27 g-

E1FH76-01E1FH76-02

14-2018-30

10-2012-2011-16

7-129-20

20-25 15-201418

1817

14-2018-30

10-2040 g55 g

22 g30 g

E1FH77-01 20-50 10-20 10-17 30 15 20-50 10-20 50 g 25 g

E1FH78-01E1FH78-02

50-10090-130 10-20

10-1610-15

75100

1011

50-10090-130

10-20 40 g 22 g

106

E1C2321E1T2105SPECIAL PACKAGING

The special packing dampers have a flexible elastomer element desi-gned for various applications, bonded to two steel mounting plates.

These multi-directional dampers allow considerable deflection to pro-tect equipment transported in containers against drops and transportshocks (missiles, aeronautical equipment).These dampers are also suitable for suspending equipment to be pro-tected against shocks and vibrations caused by explosions or earth-quakes.


DESCRIPTION

APPLICATIONS


107

Material(1)

DampingAxial static load(daN)

ReferenceOperating

temperature

DIMENSIONS

E1C2321



Maximum permitted excitation at natural frequency of suspension: ± 1.6 mm.Maximum travel available for shocks: - axial 15 mm.

- radial 40 mm.Operating temperature: see table.Weight: 0.3 kg.

70

3

370

4 mounting holesØ 5.5 45.5

unload.approx.

4355

82

BR 60 ShBR 70 ShBR 80 Sh

Resistance tooils and

hydrocarbons

Resistanceto fatigue

E1C2321S01

E1C2321S02

1-10

2-20*** * * - 54 to + 150°C

E1C2321-01E1C2321-02E1C2321-03

2-205-50

10-100* ** *** - 30 to + 100°C

E1C2321-21E1C2321-22E1C2321-23

2-205-50

10-100*** * *** - 40 to + 90°C

SIL 33 Sh

SIL 55 Sh

CR 60 ShCR 70 ShCR 75 Sh

(1) SIL: Silicone; CR: Chloroprene-Rubber; BR: Butadiene-Rubber.

108

DIMENSIONS

E1T2105



Maximum permitted excitation at natural frequency of suspension: ± 1.6 mm.Maximum travel available for shocks: - axial 40 mm.

- radial 75 mm.Operating temperature: see table.Weight: 2.6 kg.

ReferenceAxial static load

(daN)Damping

Resistance tooils and

hydrocarbons

Resistanceto fatigue

Operatingtemperature

E1T2105S01E1T2105S02

2-204-40

*** * * - 54 to + 150°C

E1T2105-41E1T2105-42E1T2105-43

10-10020-20050-400

* *** ** - 25 to + 90°C

E1T2105-21E1T2105-22E1T2105-23

10-10020-20050-400

*** * *** - 40 to + 90°C

1 tapped holefor screw M16 16 usable

122

8

8

120

4 mountingholes

Ø 10.590unload.approx.

100 122

140

109

BECA

The BECA mount comprises one piece elastomer bonded to a top andbottom plate.• Top plate: smooth or threaded (welded nut) hole.• Bottom plate: fixing lugs or direct bearing on the ground.• Bonded rubber.• Domed rubber ring.• Anti-slip bead or grooved anti-slip sole.• Removable protective top cover: protects the rubber and distributes

the load.

The design of the BECA mount gives the following basic characteristics:• Transverse elasticity approximately the same as the axial elasticity

(equifrequency).• Rubber works in compression.• Progressive buffer against shocks or accidental overload.• Anti-slip (may be placed directly on the ground).Advantages:• The machine may be placed (with its mounts) directly on the

ground.• Very slim.• Speed of fixing.• Simple removal of the assembly.• Extensive range: 3 hardnesses of rubber for 6 existing sizes, allowing

the mounting to be optimised as a function of the load and stimulationfrequency.

• A choice of 3 fixing styles.Recommendations:• In order not to affect the suspension of the machine, all external

connections must be flexible.• BECA mount can be used for fixed, well-balanced rotating

machinery, otherwise a ballasting slab should be used.(1) Natural frequencies with max/min loads, see: OPERATING CHARACTERISTICS.Nota: BECA mounts can be replaced by PAULSTRADYN mounts.

DESCRIPTION

OPERATION


110

Nominal staticload(daN)

Deflection(mm)

1-42-103-156-25

11-4511-4520-8022-90

30-120

22.53334.54.544

Type

Ø 40Ø 40Ø 60Ø 60Ø 60Ø 80Ø 80

Ø 100Ø 80

Hardness

456045607545604575


Deflection(mm)

30-13040-16050-22060-25085-350

125-500200-825

310-1250

74476776

Type Hardness

4560756075456075

Hardness

Reference

Anti-slip base Diamond baseTypeSmooth

hole (fig. a)Smooth

hole (fig. b)Threaded

hole (fig. c)

Ø A(mm)

B(mm)

B1(mm)

Ø C(mm)

C1D

(mm)

Ø E(mm)

F(mm)

J(mm)

Ø M(mm)

Weight(g)

45.6045.60.7545.60.7545.60.7545.60.7545.60.7545.60.7545.60.7545.60.75

Ø 40Ø 60Ø 80

Ø 100Ø 100Ø 150Ø 150Ø 200Ø 200

------

533108--

533151--

533202--

----

533581--

533109--

533152--

533203

533641*533661533681

--533609

--533652

--533623

406080

100100150150200200

2024273027.541394644

1822.52528

25.538364240

--8.1

10.210.214.214.21818

M6M6M8

-M10

-M14

-M18

5276

100-

124-

182-

240

6.26.28.2-

10.2-

12.2-

14.5

6490

120-

148-

214-

280

222-2.5-4-5

191822222234344444

50140250420460

1220134027503030

Ø 150Ø 100Ø 100Ø 150Ø 150Ø 200Ø 200Ø 200

DIMENSIONS


* Ø 40, M6 - RAPID nut - max. torque 3 N.m. See current price list for availability of items.

BECA with anti-slip base BECA with lugs, smooth hole BECA with lugs, threaded hole

Section XX’ Section XX’ Section XX’

Fig. a Fig. b Fig. c

Ø M

ØC Ø C

Ø A Ø AC1

Ø M

Ø E Ø E

DF

X X X’ X’X

X’

B 1 B B1 B

J

111


ASSEMBLY

BECA mounts in tandem (to double the deflection)

All of our mounts are identified by conventional markings, either a paint spot or figures indica-ting the hardness: grey = hardness 45, green = hardness 60, blue = hardness 75.

Mounting axisBECA with

smooth hole

BECA with threadedhole (welded nut)

Anti-rebound (prestressed)

Slab

Casing withinaccessible

base

BECA Ø 100 BECA Ø 150 BECA Ø 200

BECA Ø 40 BECA Ø 60 BECA Ø 80

112

POLYFLEX

DIMENSIONS


(1) Natural frequency: 9 to 20 Hz



Section XX’

Ø A

Ø C X X’

Ø E

D

F

G

BH

Nominalstatic load

(daN)

Deflection(mm)

1-51-72-8

2-103-154-185-207-30

3214352.53

Reference

532300532300532300532500532500532563532500532561

Hardness

4560754560457545

Nominalstatic load

(daN)

Deflection(mm)

7-3010-4010-5010-5015-6015-6520-80

521.545.531.5

Reference Hardness

60607545756075

532563532561532561532750532563532750532750

Reference Ø A(mm)

B(mm)

Ø C(mm)

D(mm)

Ø E(mm)

F(mm)

G(mm)

H(mm)

532300532500532563532561532750

3050556075

1620232530

68

10.112.212.2

4066907695

6.18.28.28.5

11.0

5082

10695

118

813152025

1.52346

113

ISOFLEX

The ISOFLEX mount comprises two concentric metallic parts joined bya bonded, perforated rubber ring.

The design of the ISOFLEX mount gives the following basic characte-ristics:

• Elasticity approximately the same in all directions (equi-frequentmounting).

ISOFLEX mounts may be used for suspending any small measuring orrecording equipment, mobile equipment, machine tool controls.


DESCRIPTION

OPERATION

APPLICATIONS


114

To avoid toppling or canting, the suspension should be designed so thatthe centre of gravity of the suspended equipment is close to the geo-metrical centre of the suspension.

Fixing method

DIMENSIONS



ASSEMBLY

All of our mounts are identified by conventional markings, either a paint spot or figuresindicating the hardness:grey = hardness 45, green = hardness 60, blue = hardness 75.

Reference Hard. Ø A(mm)

B(mm)

Ø C(mm)

D(mm)

Ø E(mm)

F(mm)

G(mm)

H(mm)

J(mm)

Weight(g)

552428552231552241

Fig.Type

RI.20I.30

abb

5045-6045-60

2825.438.1

810.315.9

4.24.26.2

3625.434.9

3.23.64.2

4431.844.5

44.27.3

31-

-4.37.3

91030

Nominalstatic load

(daN)

33

2.5

Deflection(mm)

Type Reference Hard.

RI.20I.20

552428552231552231

504560

0.25-10.50-20.75-3

Nominalstatic load

(daN)

Deflection(mm)

Type Reference Hard.

I.30

I.30

552241

552241

45

60

1-4

1.5-6

3

2

Fig. a Fig. b

Ø A

ØC

Ø E

Ø E

GH

B

D

D

F

FD

B

GJ

H

Ø A

Ø C

115

ISODYNE

The ISODYNE mount comprises two half mountings joined together.

The design of the ISODYNE mount gives the following basic characte-ristics:

• A very high axial to radial stiffness ratio.• Vertical fixing avoiding excessive inclination of the equipment.• Fixing at any angle.• Safe (551571), anti-rebound.

ISODYNE can be used to suspend lightweight equipment in a verticalplane.

DESCRIPTION

OPERATION

APPLICATIONS

116

Ø C

Ø E

X’

X

D F

D

F

B

J

Fixing clearances (approximate)

Fixing to wallVertical wall

Suspended equipment

Suspended equipment

frame

mount

Fixing to frame

H

G

DIMENSIONS



ASSEMBLY

G(mm)

Reference H(mm)

284047

551321551441551571

182022

Reference Hardness

504545.60

B(mm)

Ø C(mm)

551321551441551571

161820

4.26.58.2

D(mm)

25.43545.5

Ø E(mm)

3.54.26.2

F(mm)

3244.557.5

J(mm)

1.622

Weight(g)

102450


Deflect.(mm)

Reference Hard.

2.510

13

551321551441

5045


Deflect.(mm)

Reference Hard.

2535

2.52.5

551571551571

4560

Fixing a control panel against a wall orvertical frame.

Section XX’Load

117

SUSPENSION OFEQUIPMENTIN MOBILEAPPLICATIONS

● Anti-vibration mounts suitable for mobile equipment mounted in light and heavy vehicles, construction equipment (hydraulic pumps, acoustic panels, control boxes, air conditioning

sets, compressors)…● Isolation of light weight equipment in static environments.

Natural frequency: Axial and radial : 16 to 22 HzOperating temperature range: - 30°C to + 80°C.Fail safe assembly possible with washers fitted above and below the mount.(dim Ø 6,2 x Ø 30 thickness 1,5)

APPLICATIONS

CHARACTERISTICS



(1)

Ø B(mm)

C(mm)

D(mm)

Part numbers

44

E(mm)

1822

Ø F(mm)

6.29

Ø G(mm)

10.515

2227

66

Ø H(mm)

10.515

544184544172

Ø A(mm)

2936


Ø AØ A

Ø H

Ø F

Ø GØ B

Ø H

Ø F

Ø G

Ø B

LoadLoad

C

D E

C

D

E

Upper washer

Lower washer

Structure thickness3 to 4 mm(mounting hole Ø 20 mmwith M6 screw)

Structure thickness3 to 4 mm(mounting hole Ø 25 mm with M8 screw)

544184 544172

This mount has rubber moulded around a metal centre axis.The elastomer is shaped so that the mount can be pressed into the mounting structure.

The mount combines the advantages of low natural frequency and easy installation. The simple design means the part can be assembled usring a single bott or screw fixing.

DESCRIPTION

OPERATION

Part numbers

Load range(daN)

Temperature range

544184 -11 2 - 3 -30 to +80°C544184 -16 2,5 - 3,5 -30 to +60°C544172 -11 2 - 3 -30 to +60°C

118

S.C.P. MOUNTING

DIMENSIONS


(1) Natural frequency: 9 to 15 Hz



Reference Ø A(mm)

B(mm)

Ø C(mm)

D(mm)

Ø E(mm)

F(mm)

G(mm)

H(mm)

530120530220530420

7492

124

536394

101216

7290

114

91113

90114144

323660

334

ReferenceLoad(daN)

70140300

345

120200500

2.535

175300800

22.54

58010002550

Deflect.(mm)

Load(daN)

Deflect.(mm)

Load(daN)

Deflect.(mm)

530120530220530420

HARDNESS45

HARDNESS60

HARDNESS75 Weight

(g)

Section XX’

Ø A

Ø C

X

G

X’

Ø E

D

F

B

D F

H

119

BATRA RING

The BATRA ring comprises a rubber ring bonded to two metallic was-hers one with a circular groove, the other with a mating circular ridgewhich allows BATRA rings to be mounted one on top of another.

The design of the BATRA ring gives the following basic characteristics:

• Behaviour identical to that of a metallic spring plus damper.• Robustness:

- well behaved under shock.- removal of the risks of suspension collapse.

• Flexibility easily tailored by stacking BATRA rings.• Transverse creep limited by the two bonded armatures.

BATRA rings may be used:

• For making suspensions that are very flexible vertically and alsodamped by the natural properties of the rubber (road and railvehicles).

• For making very effective anti-shock buffers (wagons, cars, gantries).For special applications, where the quantities would justify custommanufacture, it is possible to supply Special BATRA rings either withonly one bonded lower armature or “all rubber”.For special cases of shock, there are Special BATRA rings with overlap-ping, non-bonded, armatures.


DESCRIPTION

OPERATION

APPLICATIONS


120

45220300415540890750980

13601680151026004400

508086

100115140146146170170185250250

Ø A(mm)

541050541083541082541100541112541145541146541144541175541174541185541249541250

Reference

112727.528.5303520353550405059

1441.53232505555556060957070

3261656585

100.5100.5100.5115115140160160

4455

101010101010101010

5677

101010101010101010

2.5344555555555

1.5322333333333

B(mm)

Ø C(mm)

G(mm)

H(mm)

J(mm)

R1(mm)

R2(mm)

Weight(g)

Staticcompression

Dynamiccompression

Nominalload(daN)

Deflection(mm)

Load(daN)

Deflect(mm)

(1)

Ø Amaxi

Reference

50-20090-360

125-500175-700210-850

325-1300375-1500

0.833333.53

600110015002100250040004500

3.577779.57

5790

100115130150158

541050541083541082541100541112541145541144

Staticcompression

Dynamiccompression

Nominalload(daN)

Deflection(mm)

Load(daN)

Deflect(mm)

(1)

Ø Amaxi

Reference

475-1900500-2000500-2000500-2000

1125-45001125-4500

1.135.34.54.55.5

5700600060006000

1350013500

2.59.5

14121213

158190190205282282

541146541175541174541185541249541250

DIMENSIONS


ASSEMBLY

The rings are centred using the grooves and ridges. To avoid play under no-load conditions, thestack should be pre-compressed by 3 to 10% of its height. It is also necessary to leave sufficientroom around the stack for the sideways expansion under load.


(1) The instantaneous deflection indicated in this table is approximate as it depends on the impact speed.It is possible to use a metallic cushion for this application.

Ø A

G

Ø C R2 R2R1

B

H

JJ

121

OTHERMOUNTINGSYSTEMS

Compression:

Deflection: 4.5 mmMaximum load: 800 daN

Shear:

Deflection: 6.5 mmMaximum load: 80 daN

Reference 534079

77

5

46

90

78

100

122

Ø 10.5

M 10

Ø 58

M 12

Ø 11.5

92

34

65

115

90

M 10

Ø 8.5

86

36

61

106

45

70


Deflection: 5 mmMaximum load: 250 daNReference 539243 -55

122

DIMENSIONS


Reference Hardness Static load(daN)

Deflection(mm)

538076

539214

539377*

45

40

60

300

300

300

5

1

0.7

* This reference has 4 screws.

Reference A(mm)

B(mm)

H(mm)

C C1G

(mm)

G1(mm)

L(mm)

Numberintermed.

plates

538076539214539377*

100100100

707070

464646

M10M10M10

M12M12M12

343133

232323

505050

-

21

A

G1B

CC

H G

C1

L

* This reference has 4 screws.

123

DIMENSIONS


Reference

Reference HardnessAxial stiffness

Load (daN)

150

230

200

Deflection (mm)

2

2

4.5

539004

539743

50

60

45

Ø A(mm)

B(mm)

Ø C(mm)

Ø C1(mm)

D(mm)

E(mm)

H(mm)

J(mm)

L(mm)

M(mm)

539004539743

5474.6

5271

15.816.25

25.4 102105

7692

13.533.5

33

82.582.5

-69.5

Reference 539004

L

D

EØ C1

Ø A

J

H

B

Ø C

Reference 539743

Ø A

Ø C

H

BDL

J

E

M

124

Ø 290

M 24

Ø 114

100

Ø 21

Ø 260

Ø 310

Reference 539972Also exists with anti-rebound stop - Reference 539971

125

STRUCTURALDAMPINGSYSTEM

This damper is made of an high damping material bonded on an alu-minium plate.A self adhesive layer on the elastomer to ease the installation.This product will reduce vibrations and noise. The damping is due tothe shearing of the high damping layer.

This damper is designed to face structure borne noise. (Engine compartments, cabs, bodyshells,….)Its limited thickness ease it's installation in confined areas.

• Part numbers: 820189 (500 x 500 mm),820248 (300 x 200 mm).

• Total thickness: 1.5 mm.• Weight : 0.7 kg (820189) and 0.2 kg

(820248) by sheet.• Temperature range: - 30°C to + 80°C with

maximal damping at ambient.

DESCRIPTION

APPLICATIONS

The surfaces must be clean and dry. An acetone type solvant or equi-valent can be used for cleaning.Cut the sheet to the appropriate size. Remove the adhesive protectionand lay the sheet on the surface avoiding any air bubble. In case of an installation on a curved surface, or with an edge, werecommend you to give the right shape to the sheet with the adhesiveprotection in place. The constrained layer damping system will be fully operationnal 72hours after installation.

INSTALLATION

CHARACTERISTICS

Aluminium sheet High damping elastomer

Self adhesive back

126

STRASONIC®

ACOUSTIC FOAM

STRASONIC is a range of complex materials designed to provide thebest acoustic isolation. Their structure is based on polyurethane foamsor cellular rubber.

Their main function is to reduce airborne noise (Isolation, Absorptionand Damping) in partial or complete enclosures of machinery.

The STRASONIC material can be used in a range of applications suchas: air conditioning, pumps, presses, compressors, electric motors, die-sel engines, generator sets, gearboxes, turbines, agricultural or cons-truction equipment and other machinery.

Due to their design, they are light, easy to handle and a self adhesiveside simplifies the installation (depending on the type of foam).

Note: To glue the foams 841001 and 841002, please contact your usualsupplier of glues, or our distribution network.

DESCRIPTION

APPLICATIONS

127

Structure

CHARACTERISTICS OF THE STRASONIC® RANGEPOLYURETHANE FOAMS

Ref. Composition and properties Acoustic performances Applications

841000

50 mm of corrugated PU Ether absorp-tion foam. Self adhesive layer on oneside.Temperature range:from - 25°C to + 110°C.Fire resistance: M4.

Average absorption factor K 65%.Approximate gain on a 2 mm steelsheet: - 10 dB (A).The corrugations increase the absor -ption surface by 40%.

- Air conditioning,- Fans,- Ventilation shaft,- Pumps,- Presses,- Air compressors, ...

841001841001-50*

50 mm of heavy weight 5 kg/m2, corru-gated PU Ether absorption foam bon-ded to 3 mm of spring foam.Temperature range:from - 25°C to + 110°C.Fire resistance: M4.

Average absorption factor K 68%.Approximate gain on a 2 mm steelsheet: - 25 dB (A).Very good performance from 500 Hz to5000 Hz.

- Air compressors,- Gearboxes,- Presses,- Compressors,- Electric motors , ...

841002

100% waterproof black PU film bon-ded to 25 mm of heavy weight 5 kg/m2

corrugated PU Ether absorption foambonded to 3 mm of spring foam.Temperature range:from - 25°C to + 110°C.Fire resistance: M4.

Approximate gain on a 2 mm steelsheet: - 20 dB (A).Very good performance from 125 Hz to4000 Hz.

- Generator sets,- Agricultural and Construc-

tion, equipment machines,- Electric and Diesel engines,- Compressors, Pumps,- Turbines- Test benches, ...

Format: sheets of 500 x 700 mm. * Reference 841001-50: Self adhesive layer on one side version.

CELLULAR RUBBERRef. Structure Composition and properties Acoustic performances Applications

841003

NBR based waterproof cellular rubber,thickness 33 mm. Self adhesive layeron one side.Temperature range static from - 40°C to+ 105°C continuous.Very good resistance to oil, ozone, airand UV.Fire resistance: M4/FMVSS 302.

Average absorption factor K ≥ 30% from500 Hz.Very good acoustic performance inhigh frequencies above 2500 Hz.Approximate gain on a 2 mm steelsheet: - 10 dB (A) at 2500 Hz /- 20 dB (A) at 5000 Hz.

- Sand blasting systems, Saws,- High speed drills,- Vacuum pumps, - Injection presses,- Gearboxes...

841004

EPDM based cellular rubber with halfclosed cells. Thickness 15 mm. Selfadhesive layer on one side.Temperature range continuous from - 40°C to + 130°C.Very good resistance to air, ozone andUV. Very flexible. Good ageing resis-tance. Waterproof if slightly compressed.Fire resistance: FMVSS 302.

Average absorption factor K ≥ 30% from600 Hz.Very good acoustic performance in high frequencies above 2000 Hz.Approximate gain on a 2 mm steelsheet: - 8 dB (A) at 2500 Hz / - 20 dB (A)at 5000 Hz.

- Air jet positioning, - Sound blasting systems, Saws,- High speed drills,- Vacuum pumps, - Injection presses,- Gearboxes...

841005

EPDM based cellular rubber half closedcells. Thickness 22.5 mm. Self adhesivelayer on one side.Temperature range continuous from - 40°C to + 130°C.Very good resistance to air, ozone andUV. Very flexible. Good ageing resis-tance. Waterproof if slightly compressed.Fire resistance: FMVSS 302.

Average absorption factor K ≥ 30% from500 Hz.Very good acoustic performance in high frequencies above 2000 Hz.Approximate gain on a 2 mm steelsheet: - 10 dB (A) at 2500 Hz/ - 27 dB (A)at 5000 Hz.

- Air jet positioning, - Sound blasting systems, Saws,- High speed drills,- Vacuum pumps, - Injection presses,- Gearboxes...

Format: sheets of 500 mm x 500 mm. (tolerance: + 5 to - 30 mm)

Average absorption factor K: ≥ 20% from 600 Hz (increase with fre-quency).Very good acoustic performancein high frequencies above 2000Hz.Approximate gain on a 2 mm steelsheet: - 10 dB (A) at 2500 Hz / - 20dB (A) at 5000 Hz.

Structure

Format: sheets of 600 mm x 500 mm. (841006) and 500x500 mm +5/-20 mm (841007).

FOAMS MEETING WITH FIRE STANDARD M1

Réf. Acoustic performances Applications

841007

NBR-PVC based waterproof cellularrubber thickness 30 mm (± 3 mm)self adhesive layer on one side.Temperature range: - 40 °C up to + 90°C continuous. Very good resistance tooil. Good fire properties with very fewsmock released. Self extinguishible Rated: M1/F4 (NFP 92507).

Composition and properties

Average absorption factor K: 85 %at 2000 Hz. Very good acoustic performancein high frequencies above 1250Hz.

841006

Melamine Resin based soundproofiingfoam, thickness 30 mm, self adhesivelayer on one side.Temperature range:up to +150°C.Fire resistance: M1/UL94 - B1/DIN 4102.Classiefied 0/BS476 6/7.

- Acoustic and thermal isolation,

Building applications :- Air conditioning, - Fans, - Ventilation shaft, - Recording studios, ...

Industrial applications :- Air compressors, Air exhausts,- Vacuum pump,- Injection presses,- Gearboxes,...

128

PAULSTRASIL®

SOUND AND THERMALINSULATION PANELS

A cellular silicon elastomer specially developed for the aerospace, rail and high-tech industries for sound, heat and fire proofing over a large operating range.

Colour: off-white (others on request).Operating range: - 60 to + 200°C.

Under no circumstances must the data in the brochure be used for drawing up specifications, these are results obtained in good faith.

• Meets the FO specifications for smoke toxicity.• Meets NF P92 501 building specifications (M2 Class autoclave test).• Meets Veritas grade 2 of the flame propagation capability.• Meets FAR 25 853 (a) and (b) specifications.• Meets ATS 1000.001 toxicity test.• Very low smoke density and opacity.• Very high resistance to natural ageing (U.V., ozone ...).• Very high resistance to usual chemicals.• Easy to use by bonding to all types of supports.• A self-bonding version is available.

DESCRIPTION

SPECIAL FEATURES

TECHNICAL DATA (as per A.S.T.M. test method)

Test performed at 890°C

PROPERTIES VALUES

DensityTensile strength

25% compression resistance, th.3.2mm

Yield strengthThermal conductivity

Ohmic resistanceFlammability UI 94 th. 3.2 mm

0.18 to 0.35300 to 400 KPa

0.5 Kg/m2

>100%0.063 W/m°K

2.9x1014 Ω cmV.O.

Reference Length x width(mm)

Thickness(mm)

820063820065820066820067

1400 x 1000

1400 x 600

1.53.25.5

10


130

NAVY SHOCKMOUNTING SYSTEMS

131

NAVY SHOCK MOUNTING SYSTEMS

A shock mounting system must fulfil the following functions:• supporting the suspended mass when there is no shock while provi-

ding isolation from vibration and structure bourne noise;

• in case of shock: limit the force and/or movement to acceptablevalues;

• after shock: return the suspended mass to its initial position.

Schematically, there are two types of shock:• An energy shock resulting from a falling mass for which the parame-

ters taken into consideration are the incident kinetic energy and thatrestituted, the impact speed and the maximum forces and deflections.

• A shock resulting from a movement of the suspended mass. The para-meters taken into consideration are the speed or acceleration of theassembly in time and also the forces relating to the maximum deflection.

• The mountings described below are intrinsically stable under shock,that is to say, they enable the mass to return to its initial position; thesystem retains no plastic deformation nor residual buckling when theshock stresses are removed.

• The suspended mass may therefore undergo successive shocks withimpunity. Nevertheless, the stability of the assembly in relation to therelative positions of the mountings and the centre of gravity of thesuspended mass should be checked.

• PAULSTRA shock mounting systems are also exceptionally effective against vibration.

INTRODUCTION

ADVANTAGES

Reference*BR 3021BR 8470BV 043

DIN 95365GAM-EG-13C

MIL-S-901DMIL-STD-167

STANAG 4142STANAG 4549STI-MM-305

Applications

Shock for onboard equipment

Shock for surface ships and submarinesMarine mounts geometry and characteristicsVibration and shock onboard shipShock for onboard equipmentMarine equipment vibrationsShock resistance analysis of equipment for surface shipsTesting of surface ship equipment on shock testing machinesVibration and shock testing for onboard equipment

*: For compliance with these standars according to the applications, ask our Technical Department.

Standards applicable to the Marine mounts

CARACTERISTICS

DESCRIPTION

• Natural frequencies (vertical and axial) 15 to 20 Hzdepending on load.

• Maximum deflection under shock:- axial: 8 mm,- radial: 5 mm.

• Mechanical strength corresponding to 30 times thenominal load.

Elastomer rings for linking and positioning of equipment while maintaining acoustic discretionand protection from shocks.

A decoupling washer is composed of:- 2 bonded elastomer washers;- 1 stainless steel anti-shock washer;- 1 stainless steel preload spacer.

Ø A

Ø D

Ø B

E

H /

h

F

Ø C

(R=1.6 mm)

VIB LD 03DECOUPLINGWASHERS

Nominalload(daN)

Reference Ø A (mm) Ø B (mm) Ø C (mm) Ø D (mm) E (mm) F (mm) H unloaded(mm)

hunder load

(mm)

14 E1RP-3804-51 Square 28x28 28 8,2 20 2,5 10 42,5 35,5 approx.



40 E1RP-3806-51 42,5 42,5 14,2 29 5 15 50 44 approx.

60 E1RP-3806-52 42,5 42,5 14,2 29 5 15 50 44 approx.

85 E1RP-3806-53 42,5 42,5 14,2 29 5 15 50 44 approx.

125 E1RP-3807-51 56 56 18,2 35 8 15 53 47 approx.

140 E1RP-3807-52 56 56 18,2 35 8 15 53 47 approx.

185 E1RP-3807-53 56 56 18,2 35 8 15 53 47 approx.

260 E1RP-3808-51 78 80 24,5 50 12 25 67 60,5 approx.

320 E1RP-3808-52 78 80 24,5 50 12 25 67 60,5 approx.

380 E1RP-3808-53 78 80 24,5 50 12 25 67 60,5 approx.

520 E1RP-3809-51 88 90 27,5 53 16 25 71 64,5 approx.

1 000 E1RP-3809-53 88 90 27,5 53 16 25 71 64,5 approx.

2000 E4353F-51 220 220 60 125 35 48,9 120,9 112,9 approx.

3500 E4353F-52 200 200 60 125 35 48,9 121,9 113,9 approx.

132

71

71

71

56

56

56

71

71

20

20

20

20

20

15

15

1548

63

63

63

63

63

48

48

4

4

4

3

3

3

3

3

40

40

40

20

20

20

20

20M62.5

• Natural frequencies (vertical and lateral)under a nominal load of 5 to 8 Hz.

• B = unloaded.

• B - 6 mm height under nominal load (deformation under load � 6 mm).

• Maximum deflection from loaded position± 10 mm in all directions (vertical and lateral).

• Stop at 10 mm deflection, maximum acceptableloads = 150 x nominal static load.

The main role of these mounts is to isolate vibration. A snubber system limits the movement ofthe suspended mass (10 mm), however the loads developed in this case, are high.A wide load range from 0,5 to 32 daN depending upon the application.In case of shock protection, the structural resistance of the mount can accept acceleration of upto 150 g.These mounts are mainly suited for vibration, hence the loads generated in case of shock arevery high.Fixation on the inside or on the outside.

M5 screws length: L supplied

Ø D (drilled)

K fixing on Ø F

Res

ting

B

Insidefixing

Outsidefixing

20

E

G

Ø A

J

C

L

HI

LOW DEFLECTIONMOUNTSLOW LOADS

66

Nominalstatic load

(daN)

0,5

1

2

4

8

16

24

32

552320 61 14

552320 61 04

552321 61 04

539966 61 04

539967 61 04

539985 61 24

539985 61 04

539985 61 14

Ø A(mm)

82

82

82

82

82

66

66

M12

M12

M12

M8

M8

M6

M6

B(mm)

30

30

30

31.5

31.5

51

51

51

25.5

25.5

25.5

34.5

35.5

32

32

32

12

12

12

13.5

13.5

33

33

33

2.5

2.5

5

6

8

8

8

C(mm)

Ø D(mm)

E(mm)

Ø F(mm)

G H(mm)

I(mm)

Jmax.(mm)

KL

max.(mm)

810

810

810

6.511

6.511101510151015

Reference

DESCRIPTION

CHARACTERISTICS

133

The VIBMAR series has a base plate with two or four mounting holesand a tapped steel core.The elastomer is bonded to the steel.

E1N104 and E1N106 versions have a conical spring embedded in therubber.

Environmental protection is provided by painting the metal parts andby coating the elastomer with an ozone resistant compound.

These multi-axis low frequency dampers have been specially designedto protect electrical or electronic racks and marine or road transportgenerator sets (on board or not). They are cone-shaped to absorbconsiderable displacement and shocks.


DESCRIPTION

APPLICATIONS


VIBMAR

134

DIMENSIONS

VIBMAR E1N2296


Natural frequency: • axial: 8 to 12 Hz• radial: 6 to 10 Hz.

Maximum permitted excitation at the natural frequency of suspension: ± 1.25 mm.Maximum axial travel available for shocks: 30 mm.Amplification factor at resonance: < 6 and < 4 for silicone rubber versions.Structural strength corresponding to a continuous accelaration of 3 g with maximum load.When suspending an enclosure, the same type of damper should be used as a stabiliser.

Operating temperature: - 30°C to + 100°C.- 54°C to + 150°C for silicone rubber versions.

Weight: 0.6 kg.

Note: Product available with stainless steel plates and/or alternative elastomers. Please consultus.

Reference Static loads(daN)

E1N2296-01E1N2296-02E1N2296-03

17-3035-5555-70


E1N2296 S01E1N2296 S02E1N2296 S03

10-1817-2520-30

SILICONE RUBBER VERSIONS

2 smooth holesØ 9

130

110

100

61 unloaded approx.56 under load approx.

5

1 tapped hole for screw M10

4

Ø 28

Ø 84

26usable

135

VIBMAR E1N101



Maximum permitted excitation at natural frequency of suspension: ± 1.5 mm.Maximum travel available for shocks: 30 mm in all directions

Weight: 2 kg.


E1N101-01E1N101-02E1N101-04E1N101-05E1N101-06

50 - 8585 - 120

130 - 210210 - 310310 - 530

Note: Product available with stainless steel plates and/or alternative elastomers on specialrequest. Please consult us.

DIMENSIONS

138

165

165

138

4 mounting holesØ 13

96 unloaded approx.86 under load approx.


Ø 152

Ø 50

6

6

usable 44

136

VIBMAR E1N104 - E1N106



Maximum permitted excitation at the natural frequency of suspension: ±1.5 mm.Amplification factor at resonance: 4 < Q < 10.Maximum axial travel available for shocks: - axial ± 45 mm.

- radial ± 25 mm.Structural strength corresponding to a continuous accelaration of 10 g with maximum load.

Weight: 2 kg.


E1N104C45ASE1N104C60ASE1N104C75ASE1N106C60ASE1N106C75AS

200 - 360360 - 600500 - 800

700 - 1000900 - 1300

Note: the mountings may be moulded in other compounds to meet special environmentalrequirements. Please consult us.

DIMENSIONS

180

220

180

220

4 mountingholesØ 17.5

146 unloaded approx.135 under loadapprox.


Ø 200

Ø 58

10

8

usable55

137

138

The permitted deflection (40 to 50 mm) of the suspended mass in relation to the mounting baselimits reaction under shock. No efficient vibration protection is offerred during shock.

• Natural frequency (vertical and lateral)under load of 5 to 8 Hz.

• Maximum deflection under load:- vertical: ± 50 mm*,- lateral: ± 45 mm*.

* maximum forces corresponding to 10times the load.

• H in rest position.• H - 6 mm under nominal load

(deflection under load = 6 mm).

Nominalstatic load

daN

1

2

4

8

16

24

32

Reference

552301 61

552302 61

552303 61

552304 61

552305 61

552306 61

552307 61

❑ A(mm)

105

105

105

95

95

90

90

5

5

5

3

3

2

2

12

12

12

8

8

8

8

39.5

39.5

39.5

19

21

19

19

91.5

91.5

91.5

76

76

77

77

135

130

125

120

120

110

105

57

57

57

58

58

60

60

H(mm)

109

109

110

110

129.5

129.5

129.5

75

75

80

80

90

90

90

47

47

49

49

67.5

67.5

67.5

5.5

5.5

5.5

5.5

6.5

6.5

6.5

❑ B(mm)

e(mm)

Ø C(mm)

Ø n(mm)

F(mm)

G(mm)

Ø D(mm)

K(mm)

L(mm)

4 Ø C

❑ B

❑ A

Ø 75 mm

Ø n useful depth 20

H

L

F

Rest

ing

28

Rest

ing

K

Ø D max buckled

Marking areaMN 50 + CN

e

e

G

VIB HD 50MEDIUM DEFLECTION

MOUNTS

LOW LOADS

DESCRIPTION

CHARACTERISTICS

139

Range of omnidirectional high deflection shock mounts made with asquare base plate and a threaded core on the upper side.

The elastomer, in natural rubber, is developed especially for navyapplications (other materials on demand).

These mounts provide both high level of vibration isolation and shockprotection. Its high structural strength corresponds to a continuousacceleration of 12 g under maximum load.

The range includes 23 different mounts covering a wide load rangefrom 15 kg up to 7000 kg per mount.

This mount meets the latest US and European shock standards in use inthe naval forces across the globe.

The metalworks are protected against corrosion (ie.: salt spray).

DESCRIPTION

ADVANTAGES

VIB HD 45HIGH DEFLECTION SHOCK MOUNTS

140

Hunloaded

(mm)

DIMENSIONS

4 holes Ø K

E

H/h

h ap

pro

x. u

nder

load

C

IJ

I

J

Ø B

F

A


• Vertical nominal static load: from 15 kg to 1670 daN per mount.• Axial and radial natural frequencies: 4 to 8 Hz, depending on the load (see chart).• Maximum axial shock displacement: 45 mm (can be increased up to 63 mm with the

addition of washers).• Maximum radial shock displacement: 45 mm.• Structural strength: 12 g under maximum load.• Operating temperature: - 30°C to + 80°C.

hunder load

(mm)

I(mm)

F(mm)

M10M10M10M10M10M10M10

M20M20 M20 M20 M20

M24M24M24M24M24

E1N-3628-52E1N-3628-51E1N-3454-54E1N-3454-53E1N-3454-52E1N-3454-51E1N-3454-56

E1N-3455-54E1N-3455-53 E1N-3455-52E1N-3455-51E1N-3455-56

E1N-3456-54E1N-3456-53 E1N-3456-52E1N-3456-51E1N-3456-55

A

37373737373737

5454 54 54 54

116116116116116

Ø B(mm)

20202020202020

4040 40 40 40

4848484848

C usefullenght

(mm)

100100100100100100100

126126 126 126 126

154154154154154

89898989898989

115115 115 115 115

141141141141141

5555555

1010 10 10 10

1515151515

E(mm)Part number

27272727272727

4141 41 41 41

4141414141

114114114114114114114

140140 140 140 140

210210210210210

150150150150150150150

165165 165 165 165

250250250250250

J(mm)

9999999

1313 13 13 13

1818181818

Ø Kscrew hole

(mm)

Load range(daN)

15 à 3523 à 5230 à 6943 à 98

55 à 12665 à 15083 à 190

85 à 196115 à 265160 à 370213 à 490280 à 645

250 à 575313 à 720400 à 920

540 à 1212725 à 1670

Chargenominale

30456085

110130165170230320425560500625800

10801450

141

4 holes Ø K

Ø P

Es

L

Ø Ap

Ø B

J I

Washer for the mounting plate* Washer for the threaded core*

ADDITIONAL SPACERS

Ø B(mm)

88

88

105

130

Ø P(mm)

8

8

5

5

E1N-3628-XX

E1N-3454-XX

E1N-3455-XX

E1N-3456-XX

For the Partnumber

63

63

67

69

Maxi axialdisplacem.

(mm)

Thickness Es(mm)

150

150

165

250

J(mm)

114

114

140

210

I(mm)

9

9

13

18

Ø K(mm)

37

37

54

116

11

11

22

26

Ø Ap(mm)

10

10

10

10

Height L(mm)

Washer for the mounting plate Washer for the threaded core

Installation without washer Installation with washers

* Not supplied

Assembly drawings

ASSEMBLY

These parts are designed to be loaded in compression. they have to beinstalled on a flat surface covering the entire surface of the base plate.The supported structure is then secured to the central core using ahigh tensile screw M20 for shape 1.

For a better result, the load per mount should be evenly distributed. Inthe case of a tall suspended equipment, these mounts can be used asstabilizing devices. They will be secured to the equipment only afterstabilization of the base mount.

These mounts are not designed to carry a permanent load in shear orin tension.

All connections with the suspended equipment must be flexible andcapable to accept high displacement allowing the suspensions to workproperly.

We strongly recommend to have your installation approved by ourTechnical Department before ordering the mounts.

142

VIB HD 56MEDIUM DEFLECTION MOUNTS

HIGH LOADS

A complete range of high deflection omnidirectional mounts. They aremade of two cast iron inserts, a threaded steel plate holding the fixinginterfaces is added to one end.

The elastomer is a specially developed natural rubber to meet theNAVY requirements. (Other materials can be delivered on request).

DESCRIPTION

These mounts will provide both a very high level of vibrationattenuation and a high shock capacity to reduce the transmittedacceleration. It's structural resistance correspond to a continuousacceleration of 10 g at the maximum load.

The range is made of 4 references with a load range ranging from 1700daN up to 5600 daN per mount.

These mounts meet both the European and North American shockstandards.

The metalwork are treated against corrosion.

ADVANTAGES

143

DIMENSIONS IN MM (for Shape 1 & 2)

Shape 1 Shape 2

Reference Load range(daN)

ShapeHeight

under max.load (mm)

E1N-4001-54E1N-4001-52E1N-4001-53E1N-4001-51

E1N-4066-52E1N-4066-51

850 to 19551050 to 24151250 to 28751600 to 3680

3000 to 50004200 to 7000

1 177 ± 2

OPERATING CHARACTERISTICS (for Shape 1 & 2)

2 220 ± 2

• Static nominal load: 850 to 7000 daN per mount.

• Axial and radial natural frequency: 4 to 7 Hz depending on load.

• Displacement under shock: 56 to 60 mm depending on the axis.

For the E1N-4001mount, it can be increased to 63 mm using spacers.

• Structural strength: 10 g at maximum load.

• Temperature range: - 30°C up to + 80°C.

6 x M20

4 x M20

352

115

A

A

2021

7

237

352

115

Ø 204,6

4xM20

4xM20

90

190

± 2

,5

30 u

sab

le

27 u

sab

le

Ø 296

175

115

115

175

A

262

37

A

Ø240

45°

22,5°

= =

==

=

==

=

8xM12

30 u

sab

le

144

Assembly drawings

ASSEMBLY

These mounts are designed to carry load in compression and shouldbe installed on a smooth surface. The equipment in Men second using4 M20 bolts (Shape 1 and 2).

For a better result, the load per mount should be evenly distributed. Inthe case of a tall suspended equipment, these mounts can be used asstabilizing devices. They will be secured to the equipment only afterstabilization of the base mount.

These mounts are not designed to carry a permanent load in shear orin tension.

All connections with the suspended equipment must be flexible andcapable to accept high displacement allowing the suspensions to workproperly.

We strongly recommend to have your installation approved by ourTechnical Department before ordering the mounts.

145

Load range(daN)

7.5 - 7515 - 15025 - 25040 - 40060 - 600

GB530-NR1GB530-NR2GB530-NR3GB530-NR4GB530-NR5

Barry Controlsreference *

PAULSTRAreference

530901 21 00530901 21 10530901 21 20530901 21 30530901 21 40

The GB530 comprises of one part in elastomer bonded to a base plateand a tapped steel core (a non magnetic version is also available).

Advantages:• Can provide high deflection under shocks.• Long life.• Low natural frequency (5 Hz in axial).• Low amplification at resonance.(8 at 10)

These are specific mounts created for the naval industry: on boardelectronics, radars, special weapons equipment.

DESCRIPTION

APPLICATIONS

DIMENSIONS


* Barry Controls part numbers are given as a reference

Ø 151

Ø 101

200

120

25 38

140

200

140

38

Dimensions are given in mm

M20 (oradapted M12)

4 holesØ 13

Stainless steelcaptivation strap

(on demand)

Temperature range: - 30°C to + 70°C.Weight: 3 - 4 kg.

(1) Natural frequencies with max/min loads.

GB530MOUNTS

Natural frequency:5 Hz

(1)

146

“X” TYPEFLEXIBLE MOUNTS

Steel mounting with excellent shock absorption capacity, highlyresistant to fatigue.

It is made of a stainless steel and epoxy resin sandwich which limits theamplification.

DESCRIPTION

DIMENSIONS

ReferenceNominal

load(daN)

H(mm)

h(mm)

L(mm)

M(mm)

Ø d(mm)

Ø D(mm)

E1M-3950-01E1M-3951-01E1M-3952-01E1M-3953-01E1M-3954-01E1M-3955-01E1M-3956-01E1M-3957-01E1M-3958-01

10204570

110180320450450

114.3114.3133.3133.3133.3190.5190.5190.5209.6

106.9106.9123.2123.6124.2185.4183.4184.4199.3

203.2203.2215.9215.9215.9297.2297.2297.2365.0

50.850.850.850.850.8

101.6101.6101.6

50.8

31.831.831.831.831.863.563.563.534.9

88

1212122020203/4”

L

Ø d

Screw holes Ø D

Height unloaded

Height under load

H

h

M


147

(1) Natural frequences with max load

These mounts are designed to be loaded in compression, they must beinstalled on a flat surface. The mount is then secured using 4 M20 screwon each side. For a better isolation and shock protection, the load mustbe evenly spread across the mounts.

In the case of the suspension of a tall cabinet or structure, these mountscan be used as top stabilizers. They will secured to the supportedsystem only after settlement of the main mounts. These mounts are notdesigned to support any static load in shear or in tension.All the connections to the suspended system must be flexible and ableto cope with very high levels of deformation in order not to interferewith the suspension.

We strongly recommend to have the installation approved by ourtechnical team prior to order any mount.

ASSEMBLY

148

VIB VHD 75VERY HIGH

DEFLECTION LOW LOADS

A range of multi directional mounts with very large deflectionmanufacture with elastomer and metal parts

The elastomer is based on natural rubber which has been speciallydeveloped for marine applications.

DESCRIPTION

The mounts provide a high level of vibration isolation and shockattenuation. Their strenght is equal to a continuous acceleration of 10gat the maximum load. The range includes 5 references with loadranging from 11 to 94 daN.

The mounts meet the shock requirements for European and NorthAmerican specifications.The metalwork is covered with elastomer to protect it against corrosion (ex. : salt fog)

ADVANTAGES

149

Axial Z compression (daN)

150

maxi9,4

15,6

21,9

31,3

46,9

7,5

12,5

17,5

25,0

37,5

9,4

15,6

21,9

31,3

46,9

7,5

12,5

17,5

25,0

37,5

18,8

31,3

43,8

62,5

93,8

11,3

18,8

26,3

37,5

56,3

15

25

35

50

75

552 450

552 451

552 452

552 453

552 454

DIMENSIONS AND CHARACTERISTICS

Ø 13

35

150

167

Ø 13

6

Ø 13

35

150

167

Ø 13

6

150

30

60

7575

60

30

150

110

Shape. 1Shape. 2

Shape. 3

Part numbers nominal mini maxi

Axial Z traction (daN)

nominal maxiTransversal Y (daN)

nominal

Longitudinal X : No permanent loads should be applied in this direction.

Static loads

151

• Resonance Frequency axial and radial:5 to 7 Hz depending on load.

• Deflection during shock : 75 mmin all directions.

• Mechanical strenght : 10 g withmaximum load.

• Operating temperature : - 30 °C to+ 80 °C.Metallic parts are covered with elastomer provide good corrosion resistance when used in a sea water environment.

TECHNICAL CHARACTERISTICS

In the case of a large cabinet, the mounts can also be used asstabilisers.They should be fixed after the load has been supported by mainmountings.

To ensure the mounting system operates correctly all connectionsshould be capable of large displacements. We recommend thatinstallation design should be approved by our technical department.

MONTAGE

Axial traction +Z

Axial compression -Z

Transversal Y

Longitudinal X

VIB VHD 75HIGH DEFLECTION

MOUNTS

HIGH LOADS

DESCRIPTION

CHARACTERISTICS

• Natural frequency (vertical and lateral)under nominal load: 4 to 5.5 Hz.

• Maximum displacement under shock: 75 mm*all in directions.

* maximum forces corresponding to 15 timesthe load.

Nominalload(daN)

Reference Ø D Ø F(mm)

G lengthuseful

(mm)

e(mm)

Hunloaded

(mm)

hunder load

(mm)

A(mm)

B(mm)

Ø dscrew hole

(mm)

120

200

250

380

630

900

1200

2000

3000

4000

E1N-3392-10 M30

M30

M30

M30

M56

M56

M56

M56

M56

M56

92

92

108

112

199

199

240

240

240

280

45

45

45

45

84

84

84

84

84

84

15

15

15

15

40

40

40

40

40

40

211

211

211

211

255

255

255

255

255

305

197 approx.

197 approx.

197 approx.

197 approx.

238 approx.

238 approx.

238 approx.

238 approx.

238 approx.

289 approx.

200

200

234

234

360

360

360

360

360

460

236

236

270

270

446.5

446.5

446.5

446.5

446.5

546.5

18

18

18

18

30

30

30

30

30

30

E1N-3392-09

E1N-3392-08

E1N-3392-07

E1N-3392-06

E1N-3392-05

E1N-3392-04

E1N-3392-03

E1N-3392-02

E1N-3392-01

A

A

B

B

4 smooth holes Ø d

G useful

1 tapped holefor screw Ø D

e

Ø F

H unloadh loadedapprox.

Elastomer isolators designed for acoustic isolation and shock protection.

152

STRAFIX

PIPE SUPPORTS

DESCRIPTION

CHARACTERISTICS

The part has a toothed profile to support the pipe, moulded onto a steel strap. There are 3different profiles depending on the diameter of the pipe to be supported. The elastomer isavailable in either chloroprene or non flamable silicone.

Advantages:With only 3 different parts it is possible to provide vibration isolation to pipes with Ø 6 up to206,5 mm. Cutting and shaping the STRAFIX to suit the pipes is easy.

A

3,8

B

P

L

PROFILE AFTER MOUNTING

Housing diameter

Pipe diameter

Ref. Non Flamable SiliconRef. Chloroprene

Strafix G1 Strafix G2

E 4286 F01E 4286 F02

E 4287 F01E 4287 F02 E 4288 F01

E 4288 F01

Strafix G3

Dimensions (mm)Profile before mounting

15

12

16,71

501,3

30

17

22,2

666

9

Width A

Height B

Pas P (1pitch)

Lenght L

Number of teeth

17

38,28

842,16

22

20 35

Dimensions (mm)Profile after mounting

6

42 approx.

approx.DE+20

94,9 approx.

approx.DE+30

Ø Pipe minimum

Ø Pipe maximum

Housing Diameter

206,5 approx.

approx.DE+30

16 51

DÉSIGNATIONAND REFERENCES

G1 G2 G3

StrafixG1 G2 G3

N number of teeth

PROFILE BEFORE MOUNTING

STRAFIXAFTER MOUNTING

Strafix

153

154

• Maximum dynamic amplitude in all directions: ± 0,5 mm• CR : Max static radial load.• CA : Max static axial load : 20% of CR• Max strength under shock : Radial = 10 x CR

Axial = 4 x CA

268

STRAFIX G3

Number of teeth

6

7

8

9

71,2

81,3

91,5

51 - 60,2

60,3 - 72,4

72,5 - 84,6

84,7 - 96,8

1068

1220

1372

61 915

171

195

220

146

10

11

12

112

96,9 - 109

109,1 - 121,2

121,3 - 133,4

1678

101,7 1525

293

244

Pipe diameter DE(mm)

Radial load(daN)

Kdyn radial(N/mm)

Kdyn axial(N/mm)

13

14

15

142

152

133,5 - 145,5

145,6 - 157,7

157,8 - 169,9

2135

2288

132 1983

342

366

317

16

17 173

170 - 182,1

182,2 - 194,3 2593

163 2440

415

390

1830122

18 183194,4 - 206,5 2745 439

28,8

STRAFIX G1

Number of teeth

4

5

6

7

0,83

1

1,17

6 - 10,1

10,2 - 15,515,6 - 20,8

20,9 - 26,1

12,5

15

17,5

0,67 10

MECHANICAL CHARATERISTICS

2

2,4

2,8

1,6

8

9

10

1,5

1,67

26,2 - 31,4

31,5 - 36,736,8 - 42,1

22,5

25

1,34 20

3,6

4

3,2


Radial load(daN)

Kdyn radial(N/mm)

Kdyn axial(N/mm)

STRAFIX G2

Number of teeth

5

6

7

8

7,9

9,2

10,6

16 - 17,1

17,2 - 24,224,3 - 31,3

31,4 - 38,3

108

126

144

6,6 90

17,3

20,16

23,04

14,4

9

10

11

13,2

38,4 - 45,4

45,5 - 52,552,6 - 59,5

180

11,9 162

31,68

25,92


Radial load(daN)

Kdyn radial(N/mm)

Kdyn axial(N/mm)

12

13

14

17,2

18,5

59,6 - 66,6

66,7 - 73,773,8 - 80,7

234

252

15,8 216

37,44

40,32

34,56

15

16 21,1

80,8 - 87,8

87,9 - 94,9 288

19,8 270

46,08

43,2

19814,5

155

Since 1988, PAULSTRA has designed and developed active isolationsystems. These systems are an extension of the PAUSTRA/VIBRACHOCrange of product with high efficiency at low frequencies.

Active control combines our knowledge in vibration control to theefficiency of electronic systems.The active pad shown on the picture/photo above is added under aconventional mount in order to improve the reduction of noise andvibration.

• To improve dynamic isolation offered by passive suspensions of thesame stiffness.

• To improve uncoupling between structures.

• To simplify the installation of the equipment by reducing or elimina-ting inertia blocks.

• To reduce structural stress and increase life.

• To reduce noise.

• To reduce movement of connections to equipment.

INTRODUCTION

ADVANTAGES

ACTIVE ISOLATION

OPERATING PRINCIPLE

RESULTS

This graph shows comparison bet-ween a machine fitted on a passivesuspension (red curve) and anactive suspension (green curve).

It clearly shows that active controlsignificantly reduces the levels ofthe loads transmitted to thestructure.

The 3 necessary elements

Force : The ActuatorsIntelligence or Programmed data : The ControllerThe Direction : The Sensors

Rotating Machinery

ControllerSensors

Transmitted Effort

PASSIVE ACTIVE

Actuators orders

Power

DYNAMIC FORCE TRANSMITTED BY THE SUSPENSION

Leve

l (d

B)

Frequency (Hz)

156

broschure_flexiblemounts

Documents

engine mounting systems

p mounting

type flexible mounts

sandwich mounts

low deflection mounts

pneumatic mounts slm

vib hd50

vib ld